Cullen v. Pinholster ( 2011 )


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  • (Slip Opinion)              OCTOBER TERM, 2010                                       1
    Syllabus
    NOTE: Where it is feasible, a syllabus (headnote) will be released, as is
    being done in connection with this case, at the time the opinion is issued.
    The syllabus constitutes no part of the opinion of the Court but has been
    prepared by the Reporter of Decisions for the convenience of the reader.
    See United States v. Detroit Timber & Lumber Co., 
    200 U.S. 321
    , 337.
    SUPREME COURT OF THE UNITED STATES
    Syllabus
    CULLEN, ACTING WARDEN v. PINHOLSTER
    CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR
    THE NINTH CIRCUIT
    No. 09–1088. Argued November 9, 2010—Decided April 4, 2011
    A California jury convicted respondent Pinholster on two counts of first
    degree murder. At the penalty phase before the same jury, the prose
    cution produced eight witnesses, who testified about Pinholster’s his
    tory of threatening and violent behavior. Pinholster’s trial counsel,
    who unsuccessfully sought to exclude the aggravating evidence on the
    ground that the prosecution had not given Pinholster proper notice
    under California law, called only Pinholster’s mother. Counsel did
    not call a psychiatrist, though they had consulted with Dr. Stalberg,
    who had diagnosed Pinholster with antisocial personality disorder.
    The jury recommended the death penalty, and Pinholster was sen
    tenced to death. Pinholster twice sought habeas relief in the Califor
    nia Supreme Court, alleging, inter alia, that his trial counsel had
    failed to adequately investigate and present mitigating evidence dur
    ing the penalty phase. He introduced additional evidence to support
    his claim: school, medical, and legal records; and declarations from
    family members, one of his trial attorneys, and Dr. Woods, a psychia
    trist who diagnosed him with bipolar mood disorder and seizure dis
    orders, and who criticized Dr. Stalberg’s report. Each time, the State
    Supreme Court unanimously and summarily denied the claim on the
    merits. Subsequently, a Federal District Court held an evidentiary
    hearing and granted Pinholster federal habeas relief under 
    28 U.S. C
    . §2254. Affirming, the en banc Ninth Circuit considered the
    new evidence adduced in the District Court hearing and held that the
    State Supreme Court’s decision “involved an unreasonable applica
    tion of . . . clearly established Federal law,” §2254(d)(1).
    Held:
    1. Review under §2254(d)(1) is limited to the record that was before
    the state court that adjudicated the claim on the merits. Pp. 8–14.
    2                       CULLEN v. PINHOLSTER
    Syllabus
    (a) As amended by the Antiterrorism and Effective Death Pen
    alty Act of 1996 (AEDPA), §2254 sets several limits on a federal
    court’s power to grant habeas relief to a state prisoner. As relevant
    here, a claim that has been “adjudicated on the merits in State court
    proceedings,” “shall not be granted . . . unless the adjudication” “(1)
    resulted in a decision that was contrary to, or involved an unreason
    able application of, clearly established Federal law,” or “(2) resulted
    in a decision that was based on an unreasonable determination of the
    facts in light of the evidence presented in the State court proceeding.”
    §2254(d). This “difficult to meet,” Harrington v. Richter, 562 U. S.
    ___, ___, and “ ‘highly deferential standard’ . . . demands that state
    court decisions be given the benefit of the doubt,” Woodford v. Vis
    ciotti, 
    537 U.S. 19
    , 24. Section 2254(d)(1)’s backward-looking lan
    guage—“resulted in” and “involved”—requires an examination of the
    state-court decision at the time it was made. It follows that the re
    cord under review is also limited to the record in existence at that
    same time—i.e., the state-court record. This understanding is com
    pelled by “the broader context of the statute as a whole,” which dem
    onstrates Congress’ intent to channel prisoners’ claims first to state
    courts. Robinson v. Shell Oil Co., 
    519 U.S. 337
    , 341. It is also con
    sistent with this Court’s precedents, which emphasize that
    §2254(d)(1) review focuses on what a state court knew and did. See,
    e.g., Lockyer v. Andrade, 
    538 U.S. 63
    , 71–72. Moreover, it is consis
    tent with Schriro v. Landrigan, 
    550 U.S. 465
    , 474, which explained
    that a federal habeas court is “not required to hold an evidentiary
    hearing” when the state-court record “precludes habeas relief” under
    §2254(d)’s limitations. The Ninth Circuit wrongly interpreted Wil
    liams v. Taylor, 
    529 U.S. 420
    , and Holland v. Jackson, 
    542 U.S. 649
    ,
    as supporting the contrary view. Pp. 8–12.
    (b) This holding does not render superfluous §2254(e)(2)—which
    limits the federal habeas courts’ discretion to take new evidence in an
    evidentiary hearing. At a minimum, §2254(e)(2) still restricts their
    discretion in claims that were not adjudicated on the merits in state
    court. Although state prisoners may sometimes submit new evidence
    in federal court, AEDPA’s statutory scheme is designed to strongly
    discourage them from doing so. Pp. 13–14.
    (c) Remand for a properly limited review is inappropriate here,
    because the Ninth Circuit ruled, in the alternative, that Pinholster
    merited habeas relief on the state-court record alone. P. 14.
    2. On the record before the state court, Pinholster was not entitled
    to federal habeas relief. Pp. 14‘–31.
    (a) To satisfy §2254(d)(1)’s “unreasonable application” prong, he
    must show that “there was no reasonable basis” for the State Su
    preme Court’s summary decision. 
    Richter, supra
    , at ___. Pp. 15–16.
    Cite as: 563 U. S. ____ (2011)                     3
    Syllabus
    (b) Strickland v. Washington, 
    466 U.S. 668
    , provides the clearly
    established federal law here. To overcome the strong presumption
    that counsel has acted competently, 
    id., at 690,
    a defendant must
    show that counsel failed to act “reasonabl[y] considering all the cir
    cumstances,” 
    id., at 688,
    and must prove the “reasonable probability
    that, but for counsel’s unprofessional errors, the result of the proceed
    ing would have been different,” 
    id., at 694.
    Review here is thus “dou
    bly deferential,” Knowles v. Mirzayance, 556 U. S. ___, ___, requiring
    a “highly deferential” look at counsel’s performance, Strickland, su
    pra, at 689, through §2254(d)’s “deferential lens,” 
    Mirzayance, supra
    ,
    at ___, n. 2. Pp. 16–18.
    (c) Pinholster has not shown that the State Supreme Court’s de
    cision that he could not demonstrate deficient performance by his
    trial counsel necessarily involved an unreasonable application of fed
    eral law. Pp. 18–26.
    (1) The state-court record supports the idea that his counsel
    acted strategically to get the prosecution’s aggravation witnesses ex
    cluded for lack of notice, and if that failed, to put on his mother as a
    mitigation witness. Billing records show that they spent time inves
    tigating mitigating evidence. The record also shows that they had an
    unsympathetic client who had boasted about his criminal history dur
    ing the guilt phase, leaving them with limited mitigation strategies.
    In addition, when Dr. Stalberg concluded that Pinholster had no sig
    nificant mental disorder or defect, he was aware of Pinholster’s medi
    cal and social history. Given these impediments, it would have been
    a reasonable penalty-phase strategy to focus on evoking sympathy for
    Pinholster’s mother. Pinholster has responded with only a handful of
    post-hoc nondenials by one of his lawyers. Pp. 18–23.
    (2) The Ninth Circuit misapplied Strickland when it drew from
    this Court’s recent cases a “constitutional duty to investigate” and a
    principle that it was prima facie ineffective for counsel to abandon an
    investigation based on rudimentary knowledge of Pinholster’s back
    ground. Beyond the general requirement of reasonableness, “specific
    guidelines are not appropriate” under 
    Strickland. 466 U.S., at 688
    .
    Nor did the Ninth Circuit properly apply the strong presumption of
    competence mandated by Strickland. Pp. 23–26.
    (d) Even if his trial counsel had performed deficiently, Pinholster
    also has failed to show that the State Supreme Court must have un
    reasonably concluded that he was not prejudiced. Pp. 26–31.
    (1) To determine “whether there is a reasonable probability
    that, absent the errors, the sentencer . . . would have concluded that”
    death was not warranted, 
    Strickland, supra, at 695
    , the aggravating
    evidence is reweighed “against the totality of available mitigating
    evidence,” Wiggins v. Smith, 
    539 U.S. 510
    , 534. Here, the State pre
    4                       CULLEN v. PINHOLSTER
    Syllabus
    sented extensive aggravating evidence at both the guilt and penalty
    phases. The mitigating evidence consisted primarily of the penalty
    phase testimony of Pinholster’s mother and guilt-phase testimony
    given by his brother. After considering the evidence, the jury re
    turned a sentence of death, which the state trial court found sup
    ported overwhelmingly by the weight of the evidence. Pp. 26–29.
    (2) There is no reasonable probability that the additional evi
    dence presented at Pinholster’s state proceedings would have
    changed the verdict. The “new” evidence largely duplicated the miti
    gation evidence of his mother and brother at trial. To the extent that
    there were new factual allegations or evidence, much of it is of ques
    tionable mitigating value. Dr. Woods’ testimony would have opened
    the door to rebuttal by a state expert; and new evidence relating to
    Pinholster’s substance abuse, mental illness, and criminal problems
    could lead a jury to conclude that he was beyond rehabilitation. The
    remaining new material in the state habeas record is sparse. Given
    what little additional mitigating evidence Pinholster presented in
    state habeas, the Court cannot say that the State Supreme Court’s
    determination was unreasonable. Pp. 29–30.
    (3) Because this Court did not apply AEDPA deference to the
    question of prejudice in Williams v. Taylor, 
    529 U.S. 362
    , and Rom
    pilla v. Beard, 
    545 U.S. 374
    , those cases lack the important “doubly
    deferential” standard of Strickland and AEDPA, and thus offer no
    guidance with respect to whether a state court has unreasonably de
    termined that prejudice is lacking. Pp. 30–31.
    
    590 F.3d 651
    , reversed.
    THOMAS, J., delivered the opinion of the Court, in which ROBERTS,
    C. J., and SCALIA and KENNEDY, JJ., joined in full; in which ALITO, J.,
    joined as to all but Part II; in which BREYER, J., joined as to Parts I and
    II; and in which GINSBURG and KAGAN, JJ., joined as to Part II. ALITO,
    J., filed an opinion concurring in part and concurring in the judgment.
    BREYER, J., filed an opinion concurring in part and dissenting in part.
    SOTOMAYOR, J., filed a dissenting opinion, in which GINSBURG and KA-
    GAN, JJ., joined as to Part II.
    Cite as: 563 U. S. ____ (2011)                              1
    Opinion of the Court
    NOTICE: This opinion is subject to formal revision before publication in the
    preliminary print of the United States Reports. Readers are requested to
    notify the Reporter of Decisions, Supreme Court of the United States, Wash­
    ington, D. C. 20543, of any typographical or other formal errors, in order
    that corrections may be made before the preliminary print goes to press.
    SUPREME COURT OF THE UNITED STATES
    _________________
    No. 09–1088
    _________________
    VINCENT CULLEN, ACTING WARDEN, PETITIONER
    v. SCOTT LYNN PINHOLSTER
    ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF
    APPEALS FOR THE NINTH CIRCUIT
    [April 4, 2011]
    JUSTICE THOMAS delivered the opinion of the Court.*
    Scott Lynn Pinholster and two accomplices broke into a
    house in the middle of the night and brutally beat and
    stabbed to death two men who happened to interrupt the
    burglary. A jury convicted Pinholster of first-degree mur­
    der, and he was sentenced to death.
    After the California Supreme Court twice unanimously
    denied Pinholster habeas relief, a Federal District Court
    held an evidentiary hearing and granted Pinholster ha­
    beas relief under 
    28 U.S. C
    . §2254. The District Court
    concluded that Pinholster’s trial counsel had been consti­
    tutionally ineffective at the penalty phase of trial. Sitting
    en banc, the Court of Appeals for the Ninth Circuit af­
    firmed. Pinholster v. Ayers, 
    590 F.3d 651
    (2009). Consid­
    ering the new evidence adduced in the District Court
    hearing, the Court of Appeals held that the California
    Supreme Court’s decision “was contrary to, or involved an
    unreasonable application of, clearly established Federal
    law.” §2254(d)(1).
    We granted certiorari and now reverse.
    ——————
    *JUSTICE GINSBURG and JUSTICE KAGAN join only Part II.
    2                  CULLEN v. PINHOLSTER
    Opinion of the Court
    I
    A
    On the evening of January 8, 1982, Pinholster solicited
    Art Corona and Paul David Brown to help him rob Mi­
    chael Kumar, a local drug dealer. On the way, they
    stopped at Lisa Tapar’s house, where Pinholster put his
    buck knife through her front door and scratched a swas­
    tika into her car after she refused to talk to him. The
    three men, who were all armed with buck knives, found no
    one at Kumar’s house, broke in, and began ransacking the
    home. They came across only a small amount of mari­
    juana before Kumar’s friends, Thomas Johnson and
    Robert Beckett, arrived and shouted that they were calling
    the police.
    Pinholster and his accomplices tried to escape through
    the rear door, but Johnson blocked their path. Pinholster
    backed Johnson onto the patio, demanding drugs and
    money and repeatedly striking him in the chest. Johnson
    dropped his wallet on the ground and stopped resisting.
    Beckett then came around the corner, and Pinholster
    attacked him, too, stabbing him repeatedly in the chest.
    Pinholster forced Beckett to the ground, took both men’s
    wallets, and began kicking Beckett in the head. Mean­
    while, Brown stabbed Johnson in the chest, “ ‘bury[ing] his
    knife to the hilt.’ ” 35 Reporter’s Tr. 4947 (hereinafter Tr.).
    Johnson and Beckett died of their wounds.
    Corona drove the three men to Pinholster’s apartment.
    While in the car, Pinholster and Brown exulted, “ ‘We got
    ’em, man, we got ’em good.’ ” 
    Ibid. At the apartment,
    Pinholster washed his knife, and the three split the pro­
    ceeds of the robbery: $23 and one quarter-ounce of mari­
    juana. Although Pinholster instructed Corona to “lay
    low,” Corona turned himself in to the police two weeks
    later. 
    Id., at 4955.
    Pinholster was arrested shortly there­
    after and threatened to kill Corona if he did not keep quiet
    about the burglary and murders. Corona later became the
    Cite as: 563 U. S. ____ (2011)            3
    Opinion of the Court
    State’s primary witness. The prosecution brought numer­
    ous charges against Pinholster, including two counts of
    first-degree murder.
    B
    The California trial court appointed Harry Brainard and
    Wilbur Dettmar to defend Pinholster on charges of first­
    degree murder, robbery, and burglary. Before their ap­
    pointment, Pinholster had rejected other attorneys and
    insisted on representing himself. During that time, the
    State had mailed Pinholster a letter in jail informing him
    that the prosecution planned to offer aggravating evidence
    during the penalty phase of trial to support a sentence of
    death.
    The guilt phase of the trial began on February 28, 1984.
    Pinholster testified on his own behalf and presented an
    alibi defense. He claimed that he had broken into
    Kumar’s house alone at around 8 p.m. on January 8, 1982,
    and had stolen marijuana but denied killing anyone.
    Pinholster asserted that later that night around 1 a.m.,
    while he was elsewhere, Corona went to Kumar’s house to
    steal more drugs and did not return for three hours.
    Pinholster told the jury that he was a “professional rob­
    ber,” not a murderer. 43 
    id., at 6204.
    He boasted of com­
    mitting hundreds of robberies over the previous six years
    but insisted that he always used a gun, never a knife. The
    jury convicted Pinholster on both counts of first-degree
    murder.
    Before the penalty phase, Brainard and Dettmar moved
    to exclude any aggravating evidence on the ground that
    the prosecution had failed to provide notice of the evidence
    to be introduced, as required by Cal. Penal Code Ann.
    §190.3 (West 2008). At a hearing on April 24, Dettmar
    argued that, in reliance on the lack of notice, he was “not
    presently prepared to offer anything by way of mitigation.”
    52 Tr. 7250. He acknowledged, however, that the prosecu­
    4                CULLEN v. PINHOLSTER
    Opinion of the Court
    tor “possibly ha[d] met the [notice] requirement.” 
    Ibid. The trial court
    asked whether a continuance might be
    helpful, but Dettmar declined, explaining that he could
    not think of a mitigation witness other than Pinholster’s
    mother and that additional time would not “make a great
    deal of difference.” 
    Id., at 7257–7258.
    Three days later,
    after hearing testimony, the court found that Pinholster
    had received notice while representing himself and denied
    the motion to exclude.
    The penalty phase was held before the same jury that
    had convicted Pinholster. The prosecution produced eight
    witnesses, who testified about Pinholster’s history of
    threatening and violent behavior, including resisting
    arrest and assaulting police officers, involvement with
    juvenile gangs, and a substantial prison disciplinary
    record. Defense counsel called only Pinholster’s mother,
    Burnice Brashear. She gave an account of Pinholster’s
    troubled childhood and adolescent years, discussed Pin­
    holster’s siblings, and described Pinholster as “a perfect
    gentleman at home.” 
    Id., at 7405.
    Defense counsel did not
    call a psychiatrist, though they had consulted Dr. John
    Stalberg at least six weeks earlier. Dr. Stalberg noted
    Pinholster’s “psychopathic personality traits,” diagnosed
    him with antisocial personality disorder, and concluded
    that he “was not under the influence of extreme mental or
    emotional disturbance” at the time of the murders. App.
    131.
    After 2½ days of deliberation, the jury unanimously
    voted for death on each of the two murder counts. On
    mandatory appeal, the California Supreme Court affirmed
    the judgment. People v. Pinholster, 
    1 Cal. 4th 865
    , 
    824 P.2d 571
    (1992).
    C
    In August 1993, Pinholster filed his first state habeas
    petition. Represented by new counsel, Pinholster alleged,
    Cite as: 563 U. S. ____ (2011)                  5
    Opinion of the Court
    inter alia, ineffective assistance of counsel at the penalty
    phase of his trial. He alleged that Brainard and Dettmar
    had failed to adequately investigate and present mitigat­
    ing evidence, including evidence of mental disorders.
    Pinholster supported this claim with school, medical, and
    legal records, as well as declarations from family mem­
    bers, Brainard, and Dr. George Woods, a psychiatrist who
    diagnosed Pinholster with bipolar mood disorder and
    seizure disorders. Dr. Woods criticized Dr. Stalberg’s
    report as incompetent, unreliable, and inaccurate. The
    California Supreme Court unanimously and summarily1
    denied Pinholster’s penalty-phase ineffective-assistance
    claim “on the substantive ground that it is without merit.”
    App. to Pet. for Cert. 302.
    Pinholster filed a federal habeas petition in April 1997.
    He reiterated his previous allegations about penalty-phase
    ineffective assistance and also added new allegations that
    his trial counsel had failed to furnish Dr. Stalberg with
    adequate background materials. In support of the new
    allegations, Dr. Stalberg provided a declaration stating
    that in 1984, Pinholster’s trial counsel had provided him
    with only some police reports and a 1978 probation report.
    Dr. Stalberg explained that, had he known about the
    material that had since been gathered by Pinholster’s
    habeas counsel, he would have conducted “further inquiry”
    before concluding that Pinholster suffered only from a
    personality disorder. App. to Brief in Opposition 219. He
    noted that Pinholster’s school records showed evidence of
    “some degree of brain damage.” 
    Ibid. Dr. Stalberg did
    not, however, retract his earlier diagnosis. The parties
    stipulated that this declaration had never been submitted
    to the California Supreme Court, and the federal petition
    ——————
    1 Although the California Supreme Court initially issued an order
    asking the State to respond, it ultimately withdrew that order as “im-
    providently issued.” App. to Pet. for Cert. 302.
    6                     CULLEN v. PINHOLSTER
    Opinion of the Court
    was held in abeyance to allow Pinholster to go back to
    state court.
    In August 1997, Pinholster filed his second state habeas
    petition, this time including Dr. Stalberg’s declaration and
    requesting judicial notice of the documents previously
    submitted in support of his first state habeas petition. His
    allegations of penalty-phase ineffective assistance of coun­
    sel mirrored those in his federal habeas petition. The
    California Supreme Court again unanimously and sum­
    marily denied the petition “on the substantive ground that
    it is without merit.”2 App. to Pet. for Cert. 300.
    Having presented Dr. Stalberg’s declaration to the state
    court, Pinholster returned to the District Court. In No­
    vember 1997, he filed an amended petition for a writ of
    habeas corpus. His allegations of penalty-phase ineffec­
    tive assistance of counsel were identical to those in his
    second state habeas petition. Both parties moved for
    summary judgment and Pinholster also moved, in the
    alternative, for an evidentiary hearing.
    The District Court concluded that the Antiterrorism and
    Effective Death Penalty Act of 1996 (AEDPA), 110 Stat.
    1214, did not apply and granted an evidentiary hearing.
    Before the hearing, the State deposed Dr. Stalberg, who
    stated that none of the new material he reviewed altered
    his original diagnosis. Dr. Stalberg disagreed with Dr.
    Woods’ conclusion that Pinholster suffers from bipolar
    disorder. Pinholster did not call Dr. Stalberg to testify at
    the hearing. He presented two new medical experts: Dr.
    Sophia Vinogradov, a psychiatrist who diagnosed Pinhol­
    ster with organic personality syndrome and ruled out
    antisocial personality disorder, and Dr. Donald Olson, a
    ——————
    2 A majority also “[s]eparately and independently” denied several
    claims, including penalty-phase ineffective assistance of counsel, as
    untimely, successive, and barred by res judicata. 
    Id., at 300.
    The State
    has not argued that these procedural rulings constitute adequate and
    independent state grounds that bar federal habeas review.
    Cite as: 563 U. S. ____ (2011)           7
    Opinion of the Court
    pediatric neurologist who suggested that Pinholster suf­
    fers from partial epilepsy and brain injury. The State
    called Dr. F. David Rudnick, a psychiatrist who, like Dr.
    Stalberg, diagnosed Pinholster with antisocial personality
    disorder and rejected any diagnosis of bipolar disorder.
    D
    The District Court granted habeas relief. Applying pre-
    AEDPA standards, the court granted the habeas petition
    “for inadequacy of counsel by failure to investigate and
    present mitigation evidence at the penalty hearing.” App.
    to Pet. for Cert. 262. After Woodford v. Garceau, 
    538 U.S. 202
    (2003), clarified that AEDPA applies to cases like
    Pinholster’s, the court amended its order but did not alter
    its conclusion. Over a dissent, a panel of the Court of
    Appeals for the Ninth Circuit reversed. Pinholster v.
    Ayers, 
    525 F.3d 742
    (2008).
    On rehearing en banc, the Court of Appeals vacated the
    panel opinion and affirmed the District Court’s grant of
    habeas relief. The en banc court held that the District
    Court’s evidentiary hearing was not barred by 
    28 U.S. C
    .
    §2254(e)(2). The court then determined that new evidence
    from the hearing could be considered in assessing whether
    the California Supreme Court’s decision “was contrary to,
    or involved an unreasonable application of, clearly estab­
    lished Federal law” under §2254(d)(1). 
    See 590 F.3d, at 666
    (“Congress did not intend to restrict the inquiry under
    §2254(d)(1) only to the evidence introduced in the state
    habeas court”). Taking the District Court evidence into
    account, the en banc court determined that the California
    Supreme Court unreasonably applied Strickland v. Wash
    ington, 
    466 U.S. 668
    (1984), in denying Pinholster’s claim
    of penalty-phase ineffective assistance of counsel.
    Three judges dissented and rejected the majority’s
    conclusion that the District Court hearing was not barred
    by 
    §2254(e)(2). 590 F.3d, at 689
    (opinion of Kozinski,
    8                 CULLEN v. PINHOLSTER
    Opinion of the Court
    C. J.) (characterizing Pinholster’s efforts as “habeas-by­
    sandbagging”). Limiting its review to the state-court
    record, the dissent concluded that the California Supreme
    Court did not unreasonably apply 
    Strickland. 590 F.3d, at 691
    –723.
    We granted certiorari to resolve two questions. 560
    U. S. ___ (2010). First, whether review under §2254(d)(1)
    permits consideration of evidence introduced in an eviden­
    tiary hearing before the federal habeas court. Second,
    whether the Court of Appeals properly granted Pinholster
    habeas relief on his claim of penalty-phase ineffective
    assistance of counsel.
    II
    We first consider the scope of the record for a
    §2254(d)(1) inquiry. The State argues that review is
    limited to the record that was before the state court that
    adjudicated the claim on the merits. Pinholster contends
    that evidence presented to the federal habeas court may
    also be considered. We agree with the State.
    A
    As amended by AEDPA, 
    28 U.S. C
    . §2254 sets several
    limits on the power of a federal court to grant an applica­
    tion for a writ of habeas corpus on behalf of a state pris­
    oner. Section 2254(a) permits a federal court to entertain
    only those applications alleging that a person is in state
    custody “in violation of the Constitution or laws or treaties
    of the United States.” Sections 2254(b) and (c) provide
    that a federal court may not grant such applications
    unless, with certain exceptions, the applicant has ex­
    hausted state remedies.
    If an application includes a claim that has been “adjudi­
    cated on the merits in State court proceedings,” §2254(d),
    an additional restriction applies. Under §2254(d), that
    application “shall not be granted with respect to [such a]
    Cite as: 563 U. S. ____ (2011)           9
    Opinion of the Court
    claim . . . unless the adjudication of the claim”:
    “(1) resulted in a decision that was contrary to, or
    involved an unreasonable application of, clearly estab­
    lished Federal law, as determined by the Supreme
    Court of the United States; or
    “(2) resulted in a decision that was based on an un­
    reasonable determination of the facts in light of the
    evidence presented in the State court proceeding.”
    This is a “difficult to meet,” Harrington v. Richter, 562
    U. S. ___, ___ (2011) (slip op., at 12), and “highly deferen­
    tial standard for evaluating state-court rulings, which
    demands that state-court decisions be given the benefit of
    the doubt,” Woodford v. Visciotti, 
    537 U.S. 19
    , 24 (2002)
    (per curiam) (citation and internal quotation marks omit­
    ted). The petitioner carries the burden of proof. 
    Id., at 25.
       We now hold that review under §2254(d)(1) is limited to
    the record that was before the state court that adjudicated
    the claim on the merits. Section 2254(d)(1) refers, in the
    past tense, to a state-court adjudication that “resulted in”
    a decision that was contrary to, or “involved” an unrea­
    sonable application of, established law. This backward­
    looking language requires an examination of the state­
    court decision at the time it was made. It follows that the
    record under review is limited to the record in existence at
    that same time⎯i.e., the record before the state court.
    This understanding of the text is compelled by “the
    broader context of the statute as a whole,” which demon­
    strates Congress’ intent to channel prisoners’ claims first
    to the state courts. Robinson v. Shell Oil Co., 
    519 U.S. 337
    , 341 (1997). “The federal habeas scheme leaves pri­
    mary responsibility with the state courts . . . .” 
    Visciotti, supra, at 27
    . Section 2254(b) requires that prisoners must
    ordinarily exhaust state remedies before filing for federal
    habeas relief. It would be contrary to that purpose to
    allow a petitioner to overcome an adverse state-court
    10                    CULLEN v. PINHOLSTER
    Opinion of the Court
    decision with new evidence introduced in a federal habeas
    court and reviewed by that court in the first instance
    effectively de novo.
    Limiting §2254(d)(1) review to the state-court record is
    consistent with our precedents interpreting that statu­
    tory provision. Our cases emphasize that review under
    §2254(d)(1) focuses on what a state court knew and did.
    State-court decisions are measured against this Court’s
    precedents as of “the time the state court renders its deci­
    sion.” Lockyer v. Andrade, 
    538 U.S. 63
    , 71–72 (2003). To
    determine whether a particular decision is “contrary to”
    then-established law, a federal court must consider
    whether the decision “applies a rule that contradicts
    [such] law” and how the decision “confronts [the] set of
    facts” that were before the state court. Williams v. Taylor,
    
    529 U.S. 362
    , 405, 406 (2000) (Terry Williams). If the
    state-court decision “identifies the correct governing legal
    principle” in existence at the time, a federal court must
    assess whether the decision “unreasonably applies that
    principle to the facts of the prisoner’s case.” 
    Id., at 413.
    It
    would be strange to ask federal courts to analyze whether
    a state court’s adjudication resulted in a decision that
    unreasonably applied federal law to facts not before the
    state court.3
    ——————
    3 JUSTICE SOTOMAYOR argues that there is nothing strange about al­
    lowing consideration of new evidence under §2254(d)(1) because, in her
    view, it would not be “so different” from some other tasks that courts
    undertake. Post, at 13 (dissenting opinion). What makes the consid­
    eration of new evidence strange is not how “different” the task would
    be, but rather the notion that a state court can be deemed to have
    unreasonably applied federal law to evidence it did not even know
    existed. We cannot comprehend how exactly a state court would have
    any control over its application of law to matters beyond its knowledge.
    Adopting JUSTICE SOTOMAYOR’s approach would not take seriously
    AEDPA’s requirement that federal courts defer to state-court decisions
    and would effectively treat the statute as no more than a “ ‘mood’ that
    the Federal Judiciary must respect,” Terry 
    Williams, 529 U.S., at 386
                         Cite as: 563 U. S. ____ (2011)                  11
    Opinion of the Court
    Our recent decision in Schriro v. Landrigan, 
    550 U.S. 465
    (2007), is consistent as well with our holding here. We
    explained that “[b]ecause the deferential standards pre­
    scribed by §2254 control whether to grant habeas relief, a
    federal court must take into account those standards in
    deciding whether an evidentiary hearing is appropriate.”
    
    Id., at 474.
    In practical effect, we went on to note, this
    means that when the state-court record “precludes habeas
    relief” under the limitations of §2254(d), a district court is
    “not required to hold an evidentiary hearing.” 
    Id., at 474
    (citing with approval the Ninth Circuit’s recognition that
    “an evidentiary hearing is not required on issues that can
    be resolved by reference to the state court record” (internal
    quotation marks omitted)).
    The Court of Appeals wrongly interpreted Williams v.
    Taylor, 
    529 U.S. 420
    (2000) (Michael Williams), as sup­
    porting the contrary view.        The question there was
    whether the lower court had correctly determined that
    §2254(e)(2) barred the petitioner’s request for a federal
    evidentiary hearing.4 Michael Williams did not concern
    whether evidence introduced in such a hearing could be
    considered under §2254(d)(1). In fact, only one claim at
    issue in that case was even subject to §2254(d); the rest
    had not been adjudicated on the merits in state-court
    proceedings. See 
    id., at 429
    (“Petitioner did not develop,
    or raise, his claims . . . until he filed his federal habeas
    petition”).5
    ——————
    (opinion of Stevens, J.).
    4 If a prisoner has “failed to develop the factual basis of a claim in
    State court proceedings,” §2254(e)(2) bars a federal court from holding
    an evidentiary hearing, unless the applicant meets certain statutory
    requirements.
    5 JUSTICE SOTOMAYOR’s suggestion that Michael Williams “rejected”
    the conclusion here, see post, at 15, is thus quite puzzling. In the
    passage that she quotes, see ibid., the Court merely explains that
    §2254(e)(2) should be interpreted in a way that does not preclude a
    state prisoner, who was diligent in state habeas court and who can
    12                    CULLEN v. PINHOLSTER
    Opinion of the Court
    If anything, the decision in Michael Williams supports
    our holding. The lower court in that case had determined
    that the one claim subject to §2254(d)(1) did not satisfy
    that statutory requirement. In light of that ruling, this
    Court concluded that it was “unnecessary to reach the
    question whether §2254(e)(2) would permit a [federal]
    hearing on th[at] claim.” 
    Id., at 444.
    That conclusion is
    fully consistent with our holding that evidence later intro­
    duced in federal court is irrelevant to §2254(d)(1) review.
    The Court of Appeals’ reliance on Holland v. Jackson,
    
    542 U.S. 649
    (2004) (per curiam), was also mistaken. In
    Holland, we initially stated that “whether a state court’s
    decision was unreasonable [under §2254(d)(1)] must be
    assessed in light of the record the court had before it.” 
    Id., at 652.
    We then went on to assume for the sake of argu­
    ment what some Courts of Appeals had held⎯that
    §2254(d)(1), despite its mandatory language, simply does
    not apply when a federal habeas court has admitted new
    evidence that supports a claim previously adjudicated in
    state court.6 
    Id., at 653.
    There was no reason to decide
    that question because regardless, the hearing should have
    been barred by §2254(e)(2). Today, we reject that assump­
    tion and hold that evidence introduced in federal court
    has no bearing on §2254(d)(1) review. If a claim has
    been adjudicated on the merits by a state court, a fed­
    eral habeas petitioner must overcome the limitation of
    §2254(d)(1) on the record that was before that state court.7
    ——————
    satisfy §2254(d), from receiving an evidentiary hearing.
    6 In Bradshaw v. Richey, 
    546 U.S. 74
    (2005) (per curiam), on which
    the Court of Appeals also relied, we made the same assumption. 
    Id., at 79–80
    (discussing the State’s “Holland argument”).
    7 Pinholster and JUSTICE SOTOMAYOR place great weight on the fact
    that §2254(d)(2) includes the language “in light of the evidence pre­
    sented in the State court proceeding,” whereas §2254(d)(1) does not.
    See post, at 6–7. The additional clarity of §2254(d)(2) on this point,
    however, does not detract from our view that §2254(d)(1) also is plainly
    limited to the state-court record. The omission of clarifying language
    Cite as: 563 U. S. ____ (2011)
    13
    Opinion of the Court
    B
    Pinholster’s contention that our holding renders
    §2254(e)(2) superfluous is incorrect. Section 2254(e)(2)
    imposes a limitation on the discretion of federal habeas
    courts to take new evidence in an evidentiary hearing.
    See 
    Landrigan, supra, at 473
    (noting that district courts,
    under AEDPA, generally retain the discretion to grant an
    evidentiary hearing). Like §2254(d)(1), it carries out
    “AEDPA’s goal of promoting comity, finality, and federal­
    ism by giving state courts the first opportunity to review
    [a] claim, and to correct any constitutional violation in the
    first instance.” Jimenez v. Quarterman, 
    555 U.S. 113
    , ___
    (2009) (slip op., at 8) (internal quotation marks omitted).8
    Section 2254(e)(2) continues to have force where
    §2254(d)(1) does not bar federal habeas relief. For exam­
    ple, not all federal habeas claims by state prisoners fall
    within the scope of §2254(d), which applies only to claims
    “adjudicated on the merits in State court proceedings.” At
    a minimum, therefore, §2254(e)(2) still restricts the discre­
    tion of federal habeas courts to consider new evidence
    when deciding claims that were not adjudicated on the
    merits in state court. See, e.g., Michael 
    Williams, 529 U.S., at 427
    –429.9
    Although state prisoners may sometimes submit new
    ——————
    from §2254(d)(1) just as likely reflects Congress’ belief that such lan­
    guage was unnecessary as it does anything else.
    8 JUSTICE SOTOMAYOR’s argument that §2254(d)(1) must be read in a
    way that “accommodates” §2254(e)(2), see post, at 9, rests on a funda­
    mental misunderstanding of §2254(e)(2). The focus of that section is
    not on “preserving the opportunity” for hearings, post, at 9, but rather
    on limiting the discretion of federal district courts in holding hearings.
    We see no need in this case to address the proper application of
    §2254(e)(2). See n. 20, infra. But see post, at 12 (suggesting that we
    have given §2254(e)(2) “an unnaturally cramped reading”).
    9 In all events, of course, the requirements of §§2254(a) through (c)
    remain significant limitations on the power of a federal court to grant
    habeas relief.
    14                   CULLEN v. PINHOLSTER
    Opinion of the Court
    evidence in federal court, AEDPA’s statutory scheme is
    designed to strongly discourage them from doing so.
    Provisions like §§2254(d)(1) and (e)(2) ensure that
    “[f]ederal courts sitting in habeas are not an alternative
    forum for trying facts and issues which a prisoner made
    insufficient effort to pursue in state proceedings.” 
    Id., at 437;
    see also Richter, 562 U. S., at ___ (slip op., at 13)
    (“Section 2254(d) is part of the basic structure of federal
    habeas jurisdiction, designed to confirm that state courts
    are the principal forum for asserting constitutional chal­
    lenges to state convictions”); Wainwright v. Sykes, 
    433 U.S. 72
    , 90 (1977) (“[T]he state trial on the merits [should
    be] the ‘main event,’ so to speak, rather than a ‘tryout on
    the road’ for what will later be the determinative federal
    habeas hearing”).10
    C
    Accordingly, we conclude that the Court of Appeals
    erred in considering the District Court evidence in its
    review under §2254(d)(1). Although we might ordinarily
    remand for a properly limited review, the Court of Appeals
    also ruled, in the alternative, that Pinholster merited
    habeas relief even on the state-court record 
    alone. 590 F.3d, at 669
    . Remand is therefore inappropriate, and we
    turn next to a review of the state-court record.
    III
    The Court of Appeals’ alternative holding was also
    erroneous. Pinholster has failed to demonstrate that the
    California Supreme Court unreasonably applied clearly
    established federal law to his penalty-phase ineffective­
    ——————
    10 Though we do not decide where to draw the line between new
    claims and claims adjudicated on the merits, see n. 11, infra, JUSTICE
    SOTOMAYOR’s hypothetical involving new evidence of withheld exculpa­
    tory witness statements, see post, at 9–10, may well present a new
    claim.
    Cite as: 563 U. S. ____ (2011)                    15
    Opinion of the Court
    assistance claim on the state-court record. Section 2254(d)
    prohibits habeas relief.
    A
    Section 2254(d) applies to Pinholster’s claim because
    that claim was adjudicated on the merits in state-court
    proceedings. No party disputes that Pinholster’s federal
    petition alleges an ineffective-assistance-of-counsel claim
    that had been included in both of Pinholster’s state habeas
    petitions. The California Supreme Court denied each of
    those petitions “on the substantive ground that it is with­
    out merit.”11
    Section 2254(d) applies even where there has been a
    summary denial. See Richter, 562 U. S., at ___ (slip op., at
    8). In these circumstances, Pinholster can satisfy the
    “unreasonable application” prong of §2254(d)(1) only by
    showing that “there was no reasonable basis” for the
    California Supreme Court’s decision. Id., at ___ (slip op.,
    at 8). “[A] habeas court must determine what arguments
    or theories . . . could have supporte[d] the state court’s
    decision; and then it must ask whether it is possible fair­
    minded jurists could disagree that those arguments or
    ——————
    11 The State does not contest that the alleged claim was adjudicated
    on the merits by the California Supreme Court, but it asserts that some
    of the evidence adduced in the federal evidentiary hearing fundamen­
    tally changed Pinholster’s claim so as to render it effectively unadjudi­
    cated. See Brief for Petitioner 28–31; Reply Brief for Petitioner 4–5; Tr.
    of Oral Arg. 18. Pinholster disagrees and argues that the evidence
    adduced in the evidentiary hearing simply supports his alleged claim.
    Brief for Respondent 33–37.
    We need not resolve this dispute because, even accepting Pinholster’s
    position, he is not entitled to federal habeas relief. Pinholster has
    failed to show that the California Supreme Court unreasonably applied
    clearly established federal law on the record before that court, infra, at
    18–23, 26–30, which brings our analysis to an end. Even if the evi­
    dence adduced in the District Court additionally supports his claim, as
    Pinholster contends, we are precluded from considering it. See n. 20,
    infra.
    16                     CULLEN v. PINHOLSTER
    Opinion of the Court
    theories are inconsistent with the holding in a prior deci­
    sion of this Court.” Id., at ___ (slip op., at 12). After a
    thorough review of the state-court record,12 we conclude
    that Pinholster has failed to meet that high threshold.
    B
    There is no dispute that the clearly established federal
    law here is Strickland v. Washington. In Strickland, this
    Court made clear that “the purpose of the effective assis­
    tance guarantee of the Sixth Amendment is not to improve
    the quality of legal representation . . . [but] simply to
    ——————
    12 The parties agree that the state-court record includes both the
    “allegations of [the] habeas corpus petition . . . and . . . ‘any matter of
    record pertaining to the case.’ ” In re Hochberg, 
    2 Cal. 3d 870
    , 874, n. 2,
    
    471 P.2d 1
    , 3–4, n. 2 (1970) (quoting Cal. Rule of Court 60), rejected on
    another ground by In re Fields, 
    51 Cal. 3d 1063
    , 1070, n. 3, 
    800 P.2d 862
    , 866, n. 3 (1990); see Reply Brief for Petitioner 16–17; Tr. of Oral
    Arg. 45. Under California law, the California Supreme Court’s sum­
    mary denial of a habeas petition on the merits reflects that court’s
    determination that “the claims made in th[e] petition do not state a
    prima facie case entitling the petitioner to relief.” In re Clark, 
    5 Cal. 4th 750
    , 770, 
    855 P.2d 729
    , 741–742 (1993). It appears that the
    court generally assumes the allegations in the petition to be true, but
    does not accept wholly conclusory allegations, People v. Duvall, 
    9 Cal. 4th 464
    , 474, 
    886 P.2d 1252
    , 1258 (1995), and will also “review the
    record of the trial . . . to assess the merits of the petitioner’s claims,”
    
    Clark, supra, at 770
    , 855 P. 2d, at 742.
    The specific contents of the state-court record depend on which of the
    two state habeas proceedings is at issue. One amicus curiae suggests
    that both are at issue⎯that is, Pinholster must prove that both Cali­
    fornia Supreme Court proceedings involved an unreasonable applica­
    tion of law under §2254(d)(1). See Brief for Criminal Justice Legal
    Foundation 26. By contrast, the most favorable approach for Pinholster
    would be review of only the second state habeas proceeding, the record
    of which includes all of the evidence that Pinholster ever submitted in
    state habeas. We have not previously ruled on how to proceed in these
    circumstances, and we need not do so here. Even taking the approach
    most favorable to Pinholster, and reviewing only whether the California
    Supreme Court was objectively unreasonable in the second state
    habeas proceeding, we find that Pinholster has failed to satisfy
    §2254(d)(1).
    Cite as: 563 U. S. ____ (2011)            17
    Opinion of the Court
    ensure that criminal defendants receive a fair 
    trial.” 466 U.S., at 689
    . Thus, “[t]he benchmark for judging any
    claim of ineffectiveness must be whether counsel’s conduct
    so undermined the proper functioning of the adversarial
    process that the trial cannot be relied on as having pro­
    duced a just result.” 
    Id., at 686
    (emphasis added). The
    Court acknowledged that “[t]here are countless ways to
    provide effective assistance in any given case,” and that
    “[e]ven the best criminal defense attorneys would not
    defend a particular client in the same way.” 
    Id., at 689.
       Recognizing the “tempt[ation] for a defendant to second­
    guess counsel’s assistance after conviction or adverse
    sentence,” ibid., the Court established that counsel should
    be “strongly presumed to have rendered adequate assis­
    tance and made all significant decisions in the exercise of
    reasonable professional judgment,” 
    id., at 690.
    To over­
    come that presumption, a defendant must show that
    counsel failed to act “reasonabl[y] considering all the
    circumstances.” 
    Id., at 688.
    The Court cautioned that
    “[t]he availability of intrusive post-trial inquiry into attor­
    ney performance or of detailed guidelines for its evalua­
    tion would encourage the proliferation of ineffectiveness
    challenges.” 
    Id., at 690.
       The Court also required that defendants prove preju­
    dice. 
    Id., at 691–692.
    “The defendant must show that
    there is a reasonable probability that, but for counsel’s
    unprofessional errors, the result of the proceeding would
    have been different.” 
    Id., at 694.
    “A reasonable probabil­
    ity is a probability sufficient to undermine confidence in
    the outcome.” 
    Ibid. That requires a
    “substantial,” not just
    “conceivable,” likelihood of a different result. Richter, 562
    U. S., at ___ (slip op., at 22).
    Our review of the California Supreme Court’s decision is
    thus “doubly deferential.” Knowles v. Mirzayance, 556
    U. S. ___, ___ (2009) (slip op., at 11) (citing Yarborough v.
    Gentry, 
    540 U.S. 1
    , 5–6 (2003) (per curiam)). We take a
    18                CULLEN v. PINHOLSTER
    Opinion of the Court
    “highly deferential” look at counsel’s performance, Strick
    
    land, supra, at 689
    , through the “deferential lens of
    §2254(d),” 
    Mirzayance, supra
    , at ___, n. 2 (slip op., at 9,
    n. 2). Pinholster must demonstrate that it was necessarily
    unreasonable for the California Supreme Court to con­
    clude: (1) that he had not overcome the strong presump­
    tion of competence; and (2) that he had failed to under­
    mine confidence in the jury’s sentence of death.
    C
    1
    Pinholster has not shown that the California Supreme
    Court’s decision that he could not demonstrate deficient
    performance by his trial counsel necessarily involved an
    unreasonable application of federal law. In arguing to the
    state court that his counsel performed deficiently, Pinhol­
    ster contended that they should have pursued and pre­
    sented additional evidence about: his family members and
    their criminal, mental, and substance abuse problems; his
    schooling; and his medical and mental health history,
    including his epileptic disorder. To support his allegation
    that his trial counsel had “no reasonable tactical basis” for
    the approach they took, Pinholster relied on statements
    his counsel made at trial. App. to Brief in Opposition 143.
    When arguing the motion to exclude the State’s aggravat­
    ing evidence at the penalty phase for failure to comply
    with Cal. Penal Code Ann. §190.3, Dettmar, one of Pinhol­
    ster’s counsel, contended that because the State did not
    provide notice, he “[was] not presently prepared to offer
    anything by way of mitigation,” 52 Tr. 7250. In response
    to the trial court’s inquiry as to whether a continuance
    might be helpful, Dettmar noted that the only mitigation
    witness he could think of was Pinholster’s mother. Addi­
    tional time, Dettmar stated, would not “make a great deal
    of difference.” 
    Id., at 7257–7258.
       We begin with the premise that “under the circum­
    Cite as: 563 U. S. ____ (2011)          19
    Opinion of the Court
    stances, the challenged action[s] might be considered
    sound trial strategy. ” Strick
    land, supra, at 689
    (internal
    quotation marks omitted). The Court of Appeals dissent
    described one possible strategy:
    “[Pinholster’s attorneys] were fully aware that they
    would have to deal with mitigation sometime during
    the course of the trial, did spend considerable time
    and effort investigating avenues for mitigation[,] and
    made a reasoned professional judgment that the best
    way to serve their client would be to rely on the fact
    that they never got [the required §190.3] notice and
    hope the judge would bar the state from putting on
    their aggravation 
    witnesses.” 590 F.3d, at 701
    –702
    (opinion of Kozinski, C. J.).
    Further, if their motion was denied, counsel were pre­
    pared to present only Pinholster’s mother in the penalty
    phase to create sympathy not for Pinholster, but for his
    mother. After all, the “ ‘family sympathy’ ” mitigation
    defense was known to the defense bar in California at the
    time and had been used by other attorneys. 
    Id., at 707.
    Rather than displaying neglect, we presume that Dett­
    mar’s arguments were part of this trial strategy. See
    
    Gentry, supra, at 8
    (“[T]here is a strong presumption that
    [counsel took certain actions] for tactical reasons rather
    than through sheer neglect” (citing 
    Strickland, supra, at 690
    )).
    The state-court record supports the idea that Pinhol­
    ster’s counsel acted strategically to get the prosecution’s
    aggravation witnesses excluded for lack of notice, and if
    that failed, to put on Pinholster’s mother. Other state­
    ments made during the argument regarding the motion to
    exclude suggest that defense counsel were trying to take
    advantage of a legal technicality and were not truly sur­
    prised. Brainard and Dettmar acknowledged that the
    prosecutor had invited them on numerous occasions to
    20                     CULLEN v. PINHOLSTER
    Opinion of the Court
    review Pinholster’s state prison file but argued that such
    an invitation did not meet with the “strict demands” of
    §190.3. 52 Tr. 7260. Dettmar admitted that the prosecu­
    tor, “being as thorough as she is, possibly ha[d] met the
    requirement.” 
    Id., at 7250.
    But if so, he wanted her “to
    make that representation to the court.”13 
    Ibid. Timesheets indicate that
    Pinholster’s trial counsel
    investigated mitigating evidence.14 Long before the guilty
    verdict, Dettmar talked with Pinholster’s mother and
    contacted a psychiatrist.15 On February 26, two months
    before the penalty phase started, he billed six hours
    for “[p]reparation argument, death penalty phase.” See
    Clerk’s Tr. 864. Brainard, who merely assisted Dettmar
    for the penalty phase, researched epilepsy and also inter­
    viewed Pinholster’s mother.16 We know that Brainard
    likely spent additional time, not reflected in these entries,
    preparing Pinholster’s brother, Terry, who provided some
    mitigation testimony about Pinholster’s background dur­
    ——————
    13 Counsel’s argument was persuasive enough to cause the trial court
    to hold a hearing and take testimony before denying the motion to
    exclude.
    14 Both parties agree that these billing records were before the Cali­
    fornia Supreme Court. See Tr. of Oral Arg. 45, 48–49.
    15 See Clerk’s Tr. 798 (entry on Jan. 13 for “phone call to defendant’s
    mother re medical history”); 
    id., at 864
    (entries on Feb. 21 for “Penal
    Code research on capital punishment”; Feb. 23 for “conference with
    defendant’s mother re childhood problems”; Feb. 25 for “Research on
    Pen. C. 190.3”; and Feb. 29 for “photocopying reports for appointed
    expert,” “Preparation of Declaration and Order for appointment of
    psychiatrist,” “Preparation order of visitation for investigator,” and
    “Further research on Pen. C. 190.3”). The time records for Dettmar
    unfortunately stop with Mar. 14, so we do not know what he did during
    the critical weeks leading up to the penalty phase on May 1.
    16 See 
    id., at 869
    (entries on Feb. 23 for “Conf. with Bernice Brasher,
    Pinholster’s mother”; and Feb. 25 for “Research re; epilepsy and conf.
    with nurse”); 
    id., at 1160
    (entries on Apr. 11 for “Start prep. for penalty
    phase”; Apr. 25 for “Prep. penalty phase and conf. with Mrs. Brashear”;
    and Apr. 26 for “Prep. penalty phase”).
    Cite as: 563 U. S. ____ (2011)           21
    Opinion of the Court
    ing the guilt phase. Infra, at 28.
    The record also shows that Pinholster’s counsel con­
    fronted a challenging penalty phase with an unsympa­
    thetic client, which limited their feasible mitigation
    strategies. By the end of the guilt phase, the jury had
    observed Pinholster “glor[y]” in “his criminal disposition”
    and “hundreds of robberies.” 
    Pinholster, 1 Cal. 4th, at 945
    , 
    907, 824 P.2d, at 611
    , 584. During his cross­
    examination, Pinholster laughed or smirked when he told
    the jury that his “occupation” was “a crook,” when he was
    asked whether he had threatened a potential witness, and
    when he described thwarting police efforts to recover a
    gun he had once used. 44 Tr. 6225. He bragged about
    being a “professional robber.” 43 
    id., at 6204.
    To sup-
    port his defense, Pinholster claimed that he used only
    guns⎯not knives⎯to commit his crimes. But during
    cross-examination, Pinholster admitted that he had previ­
    ously been convicted of using a knife in a kidnaping.
    Pinholster also said he was a white supremacist and that
    he frequently carved swastikas into other people’s prop­
    erty as “a sideline to robbery.” 44 
    id., at 6246.
       Trial counsel’s psychiatric expert, Dr. Stalberg, had
    concluded that Pinholster showed no significant signs or
    symptoms of mental disorder or defect other than his
    “psychopathic personality traits.” App. 131. Dr. Stalberg
    was aware of Pinholster’s hyperactivity as a youngster,
    hospitalization at age 14 for incorrigibility, alleged epilep­
    tic disorder, and history of drug dependency. Neverthe­
    less, Dr. Stalberg told counsel that Pinholster did not
    appear to suffer from brain damage, was not significantly
    intoxicated or impaired on the night in question, and did
    not have an impaired ability to appreciate the criminality
    of his conduct.
    Given these impediments, it would have been a reason­
    able penalty-phase strategy to focus on evoking sympathy
    for Pinholster’s mother. In fact, such a family sympathy
    22                CULLEN v. PINHOLSTER
    Opinion of the Court
    defense is precisely how the State understood defense
    counsel’s strategy. The prosecutor carefully opened her
    cross-examination of Pinholster’s mother with, “I hope you
    understand I don’t enjoy cross-examining a mother of
    anybody.” 52 Tr. 7407. And in her closing argument, the
    prosecutor attempted to undercut defense counsel’s strat­
    egy by pointing out, “Even the most heinous person born,
    even Adolph Hitler[,] probably had a mother who loved
    him.” 53 
    id., at 7452.
       Pinholster’s only response to this evidence is a series of
    declarations from Brainard submitted with Pinholster’s
    first state habeas petition, seven years after the trial.
    Brainard declares that he has “no recollection” of inter­
    viewing any family members (other than Pinholster’s
    mother) regarding penalty-phase testimony, of attempting
    to secure Pinholster’s school or medical records, or of
    interviewing any former teachers or counselors. Pet. for
    Writ of Habeas Corpus in No. S004616 (Cal.), Exh. 3.
    Brainard also declares that Dettmar was primarily re­
    sponsible for mental health issues in the case, but he has
    “no recollection” of Dettmar ever having secured Pinhol­
    ster’s medical records. 
    Id., Exh. 2.
    Dettmar neither con­
    firmed nor denied Brainard’s statements, as he had died
    by the time of the first state habeas 
    petition. 590 F.3d, at 700
    (Kozinski, C. J., dissenting).
    In sum, Brainard and Dettmar made statements sug­
    gesting that they were not surprised that the State in­
    tended to put on aggravating evidence, billing records
    show that they spent time investigating mitigating evi­
    dence, and the record demonstrates that they represented
    a psychotic client whose performance at trial hardly en­
    deared him to the jury. Pinholster has responded to this
    evidence with only a handful of post-hoc nondenials by one
    of his lawyers. The California Supreme Court could have
    reasonably concluded that Pinholster had failed to rebut
    the presumption of competence mandated by Strickland—
    Cite as: 563 U. S. ____ (2011)           23
    Opinion of the Court
    here, that counsel had adequately performed at the pen­
    alty phase of trial.
    2
    The Court of Appeals held that the California Supreme
    Court had unreasonably applied Strickland because Pin­
    holster’s attorneys “w[ere] far more deficient than . . . the
    attorneys in Terry Williams, Wiggins [v. Smith, 
    539 U.S. 510
    (2003)], and Rompilla [v. Beard, 
    545 U.S. 374
    (2005)],
    where in each case the Supreme Court upheld the peti­
    tioner’s ineffective assistance 
    claim.” 590 F.3d, at 671
    .
    The court drew from those cases a “constitutional duty to
    investigate,” 
    id., at 674,
    and the principle that “[i]t is
    prima facie ineffective assistance for counsel to ‘abandon[ ]
    their investigation of [the] petitioner’s background after
    having acquired only rudimentary knowledge of his his­
    tory from a narrow set of sources,’ ” 
    ibid. (quoting Wiggins v.
    Smith, 
    539 U.S. 510
    , 524–525 (2003)). The court ex­
    plained that it could not “lightly disregard” a failure to
    introduce evidence of “excruciating life history” or “night­
    marish 
    childhood.” 590 F.3d, at 684
    (internal quotation
    marks omitted).
    The Court of Appeals misapplied Strickland and over­
    looked “the constitutionally protected independence of
    counsel and . . . the wide latitude counsel must have in
    making tactical 
    decisions.” 466 U.S., at 689
    . Beyond the
    general requirement of reasonableness, “specific guide­
    lines are not appropriate.” 
    Id., at 688.
    “No particular set
    of detailed rules for counsel’s conduct can satisfactorily
    take account of the variety of circumstances faced by
    defense counsel or the range of legitimate decisions . . . .”
    
    Id., at 688–689.
    Strickland itself rejected the notion that
    the same investigation will be required in every case. 
    Id., at 691
    (“[C]ounsel has a duty to make reasonable investi­
    gations or to make a reasonable decision that makes par­
    ticular investigations unnecessary” (emphasis added)). It
    24                   CULLEN v. PINHOLSTER
    Opinion of the Court
    is “[r]are” that constitutionally competent representation
    will require “any one technique or approach.” Richter, 562
    U. S., at ___ (slip op., at 17). The Court of Appeals erred
    in attributing strict rules to this Court’s recent case law.17
    Nor did the Court of Appeals properly apply the strong
    presumption of competence that Strickland mandates.
    The court dismissed the dissent’s application of the pre­
    sumption as “fabricat[ing] an excuse that the attorneys
    themselves could not conjure 
    up.” 590 F.3d, at 673
    . But
    Strickland specifically commands that a court “must
    indulge [the] strong presumption” that counsel “made all
    significant decisions in the exercise of reasonable profes­
    sional 
    judgment.” 466 U.S., at 689
    –690. The Court of
    Appeals was required not simply to “give [the] attorneys
    the benefit of the 
    doubt,” 590 F.3d, at 673
    , but to affirma­
    tively entertain the range of possible “reasons Pinholster’s
    counsel may have had for proceeding as they did,” 
    id., at 692
    (Kozinski, C. J., dissenting). See also 
    Richter, supra
    ,
    at ___ (slip op., at 20) (“Strickland . . . calls for an inquiry
    into the objective reasonableness of counsel’s performance,
    not counsel’s subjective state of mind”).
    JUSTICE SOTOMAYOR questions whether it would have
    been a reasonable professional judgment for Pinholster’s
    trial counsel to adopt a family-sympathy mitigation de­
    fense. Post, at 27. She cites no evidence, however, that
    such an approach would have been inconsistent with the
    standard of professional competence in capital cases that
    prevailed in Los Angeles in 1984. Indeed, she does not
    contest that, at the time, the defense bar in California had
    been using that strategy. 
    See supra, at 19
    ; post, at 28,
    n. 21. JUSTICE SOTOMAYOR relies heavily on Wiggins, but
    ——————
    17 The Court of Appeals was not necessarily wrong in looking to other
    precedents of this Court for guidance, but “the Strickland test ‘of
    necessity requires a case-by-case examination of the evidence.’ ” Terry
    Williams, 
    529 U.S. 362
    , 391 (2000) (quoting Wright v. West, 
    505 U.S. 277
    , 308 (1992) (KENNEDY, J., concurring in judgment)).
    Cite as: 563 U. S. ____ (2011)           25
    Opinion of the Court
    in that case the defendant’s trial counsel specifically ac­
    knowledged a standard practice for capital cases in Mary­
    land that was inconsistent with what he had 
    done. 539 U.S., at 524
    .
    At bottom, JUSTICE SOTOMAYOR’s view is grounded in
    little more than her own sense of “prudence,” post, at 26
    (internal quotation marks omitted), and what appears to
    be her belief that the only reasonable mitigation strategy
    in capital cases is to “help” the jury “understand” the
    defendant, post, at 35. According to JUSTICE SOTOMAYOR,
    that Pinholster was an unsympathetic client “com­
    pound[ed], rather than excuse[d], counsel’s deficiency” in
    pursuing further evidence “that could explain why Pinhol­
    ster was the way he was.” Post, at 30. But it certainly can
    be reasonable for attorneys to conclude that creating
    sympathy for the defendant’s family is a better idea be­
    cause the defendant himself is simply unsympathetic.
    JUSTICE SOTOMAYOR’s approach is flatly inconsistent
    with Strickland’s recognition that “[t]here are countless
    ways to provide effective assistance in any given 
    case.” 466 U.S., at 689
    . There comes a point where a defense
    attorney will reasonably decide that another strategy is in
    order, thus “mak[ing] particular investigations unneces­
    sary.” 
    Id., at 691
    ; 
    cf. 590 F.3d, at 692
    (Kozinski, C. J.,
    dissenting) (“The current infatuation with ‘humanizing’
    the defendant as the be-all and end-all of mitigation disre­
    gards the possibility that this may be the wrong tactic in
    some cases because experienced lawyers conclude that the
    jury simply won’t buy it”). Those decisions are due “a
    heavy measure of deference.” 
    Strickland, supra, at 691
    .
    The California Supreme Court could have reasonably
    concluded that Pinholster’s counsel made such a reasoned
    decision in this case.
    We have recently reiterated that “ ‘[s]urmounting Strick
    land’s high bar is never an easy task.’ ” 
    Richter, supra
    , at
    ___ (slip op., at 15) (quoting Padilla v. Kentucky, 
    559 U.S. 26
                   CULLEN v. PINHOLSTER
    Opinion of the Court
    ___, ___ (2010) (slip op., at 14)). The Strickland standard
    must be applied with “scrupulous care.” 
    Richter, supra
    , at
    ___ (slip op., at 15). The Court of Appeals did not do so
    here.
    D
    Even if his trial counsel had performed deficiently,
    Pinholster also has failed to show that the California
    Supreme Court must have unreasonably concluded that
    Pinholster was not prejudiced. “[T]he question is whether
    there is a reasonable probability that, absent the errors,
    the sentencer . . . would have concluded that the balance of
    aggravating and mitigating circumstances did not warrant
    death.” 
    Strickland, supra, at 695
    . We therefore “reweigh
    the evidence in aggravation against the totality of avail­
    able mitigating evidence.” 
    Wiggins, supra, at 534
    .
    1
    We turn first to the aggravating and mitigating evi­
    dence that the sentencing jury considered. See 
    Strickland, supra, at 695
    (“[A] court hearing an ineffectiveness claim
    must consider the totality of the evidence before the judge
    or jury”). Here, the same jury heard both the guilt and
    penalty phases and was instructed to consider all the
    evidence presented. Cf. 
    Visciotti, 537 U.S., at 25
    (noting
    that the state habeas court had correctly considered miti­
    gating evidence introduced during the guilt phase).
    The State presented extensive aggravating evidence. As
    we have already discussed, the jury watched Pinholster
    revel in his extensive criminal history. Supra, at 21.
    Then, during the penalty phase, the State presented evi­
    dence that Pinholster had threatened to kill the State’s
    lead witness, assaulted a man with a straight razor, and
    kidnaped another person with a knife. The State showed
    that Pinholster had a history of violent outbursts, includ­
    ing striking and threatening a bailiff after a court proceed­
    Cite as: 563 U. S. ____ (2011)                     27
    Opinion of the Court
    ing at age 17, breaking his wife’s jaw,18 resisting arrest by
    faking seizures, and assaulting and spitting on police
    officers. The jury also heard about Pinholster’s involve­
    ment in juvenile gangs and his substantial disciplinary
    record in both county and state jails, where he had threat­
    ened, assaulted, and thrown urine at guards, and fought
    with other inmates. While in jail, Pinholster had been
    segregated for a time due to his propensity for violence
    and placed on a “special disciplinary diet” reserved only
    for the most disruptive inmates. 52 Tr. 7305.
    The mitigating evidence consisted primarily of the
    penalty-phase testimony of Pinholster’s mother, Brashear,
    who gave a detailed account of Pinholster’s troubled child­
    hood and adolescence. Early childhood was quite difficult.
    The family “didn’t have lots of money.” 
    Id., at 7404.
    When he was very young, Pinholster suffered two serious
    head injuries, first at age 2 or 3 when he was run over by a
    car, and again at age 4 or 5 when he went through the
    windshield during a car accident. When he was 5, Pinhol­
    ster’s stepfather moved in and was abusive, or nearly so.
    Pinholster always struggled in school. He was disrup­
    tive in kindergarten and was failing by first grade. He got
    in fights and would run out of the classroom. In third
    grade, Pinholster’s teacher suggested that he was more
    than just a “ ‘disruptive child.’ ” 
    Id., at 7394.
    Following
    tests at a clinic, Pinholster was sent to a school for educa­
    tionally handicapped children where his performance
    improved.
    At age 10, psychiatrists recommended that Pinholster
    be sent to a mental institution, although he did not go.
    Pinholster had continued to initiate fights with his broth­
    ers and to act like “Robin Hood” around the neighborhood,
    ——————
    18 Pinholster’s wife waived her spousal privilege to testify to this fact.
    She acknowledged that her testimony would be used to argue that her
    husband should be executed.
    28                   CULLEN v. PINHOLSTER
    Opinion of the Court
    “[s]tealing from the rich and giving to the poor.” 
    Id., at 7395.
    Brashear had thought then that “[s]omething was
    not working right.” 
    Id., at 7396.
       By age 10 or 11, Pinholster was living in boy’s homes
    and juvenile halls. He spent six months when he was 12
    in a state mental institution for emotionally handicapped
    children. By the time he was 18, Pinholster was in county
    jail, where he was beaten badly. Brashear suspected that
    the beating caused Pinholster’s epilepsy, for which he has
    been prescribed medication. After a stint in state prison,
    Pinholster returned home but acted “unusual” and had
    trouble readjusting to life. 
    Id., at 7405.
       Pinholster’s siblings were “basically very good children,”
    although they would get into trouble. 
    Id., at 7401.
    His
    brother, Terry, had been arrested for drunk driving and
    his sister, Tammy, for public intoxication. Tammy also
    was arrested for drug possession and was self-destructive
    and “wild.” 
    Ibid. Pinholster’s eldest brother,
    Alvin, died a
    fugitive from California authorities.19
    In addition to Brashear’s penalty-phase testimony,
    Pinholster had previously presented mitigating evidence
    during the guilt phase from his brother, Terry. Terry
    testified that Pinholster was “more or less in institutions
    all his life,” suffered from epilepsy, and was “more or less”
    drunk on the night of the murders. 42 
    id., at 6015,
    6036.
    After considering this aggravating and mitigating evi­
    dence, the jury returned a sentence of death. The state
    ——————
    19 JUSTICE SOTOMAYOR criticizes Brashear’s testimony as “self­
    interested,” post, at 31, but the whole premise of the family-sympathy
    defense is the family’s interest. She similarly makes much of the fact
    that the prosecutor “belittle[d]” Brashear’s testimony in closing argu­
    ment. Post, at 33. We fail to see the point. Any diligent prosecutor
    would have challenged whatever mitigating evidence the defense had
    put on. And, we would certainly not expect the prosecutor’s closing
    argument to have described the evidence in the light most favorable to
    Pinholster. But see ibid., n. 26.
    Cite as: 563 U. S. ____ (2011)           29
    Opinion of the Court
    trial court found that the jury’s determination was “sup­
    ported overwhelmingly by the weight of the evidence” and
    added that “the factors in aggravation beyond all reason­
    able doubt outweigh those in mitigation.” Clerk’s Tr.
    1184, 1186.
    2
    There is no reasonable probability that the additional
    evidence Pinholster presented in his state habeas proceed­
    ings would have changed the jury’s verdict. The “new”
    evidence largely duplicated the mitigation evidence at
    trial. School and medical records basically substantiate
    the testimony of Pinholster’s mother and brother. Decla­
    rations from Pinholster’s siblings support his mother’s
    testimony that his stepfather was abusive and explain
    that Pinholster was beaten with fists, belts, and even
    wooden boards.
    To the extent the state habeas record includes new
    factual allegations or evidence, much of it is of question­
    able mitigating value. If Pinholster had called Dr. Woods
    to testify consistently with his psychiatric report, Pinhol­
    ster would have opened the door to rebuttal by a state
    expert. See, e.g., Wong v. Belmontes, 558 U. S. ___, ___
    (2009) (per curiam) (slip op., at 10–12) (taking into account
    that certain mitigating evidence would have exposed the
    petitioner to further aggravating evidence). The new
    evidence relating to Pinholster’s family⎯their more seri­
    ous substance abuse, mental illness, and criminal prob­
    lems, see post, at 22⎯is also by no means clearly mitigat­
    ing, as the jury might have concluded that Pinholster was
    simply beyond rehabilitation. Cf. Atkins v. Virginia, 
    536 U.S. 304
    , 321 (2002) (recognizing that mitigating evidence
    can be a “two-edged sword” that juries might find to show
    future dangerousness).
    The remaining new material in the state habeas record
    is sparse. We learn that Pinholster’s brother Alvin died of
    30                  CULLEN v. PINHOLSTER
    Opinion of the Court
    suicide by drug overdose, and there are passing references
    to Pinholster’s own drug dependency. According to Dr.
    Stalberg, Pinholster’s “school records” apparently evi­
    denced “some degree” of brain damage. App. to Brief in
    Opposition 219. Mostly, there are just a few new details
    about Pinholster’s childhood.       Pinholster apparently
    looked like his biological father, whom his grandparents
    “loathed.” Pet. for Writ of Habeas Corpus in No. S004616
    (Cal.), Exh. 98, p. 1. Accordingly, whenever his grandpar­
    ents “spanked or disciplined” the kids, Pinholster “always
    got the worst of it.” 
    Ibid. Pinholster was mostly
    unsuper­
    vised and “didn’t get much love,” because his mother and
    stepfather were always working and “were more concerned
    with their own lives than the welfare of their kids.” 
    Id., at 2.
    Neither parent seemed concerned about Pinholster’s
    schooling. Finally, Pinholster’s aunt once saw the children
    mixing flour and water to make something to eat, al­
    though “[m]ost meals consisted of canned spaghetti and
    foods of that ilk.” 
    Id., at 1.
       Given what little additional mitigating evidence Pinhol­
    ster presented in state habeas, we cannot say that the
    California Supreme Court’s determination was unreason­
    able. Having already heard much of what is included in
    the state habeas record, the jury returned a sentence of
    death. Moreover, some of the new testimony would likely
    have undercut the mitigating value of the testimony by
    Pinholster’s mother. The new material is thus not so
    significant that, even assuming Pinholster’s trial counsel
    performed deficiently, it was necessarily unreasonable for
    the California Supreme Court to conclude that Pinholster
    had failed to show a “substantial” likelihood of a different
    sentence. Richter, 562 U. S., at ___ (slip op., at 22) (citing
    
    Strickland, 466 U.S., at 693
    ).
    3
    As with deficiency, the Court of Appeals found this case
    Cite as: 563 U. S. ____ (2011)                  31
    Opinion of the Court
    to be “materially indistinguishable” from Terry Williams
    and Rompilla v. Beard, 
    545 U.S. 374
    (2005). 590 F.3d, at
    684
    . But this Court did not apply AEDPA deference to the
    question of prejudice in those cases; each of them lack the
    important “doubly deferential” standard of Strickland and
    AEDPA. See Terry 
    Williams, 529 U.S., at 395
    –397 (re­
    viewing a state-court decision that did not apply the cor­
    rect legal standard); 
    Rompilla, supra, at 390
    (reviewing
    Strickland prejudice de novo because the state-court deci­
    sion did not reach the question). Those cases therefore
    offer no guidance with respect to whether a state court has
    unreasonably determined that prejudice is lacking. We
    have said time and again that “an unreasonable applica­
    tion of federal law is different from an incorrect applica­
    tion of federal law.” 
    Richter, supra
    , at ___ (slip op., at 11)
    (internal quotation marks omitted). Even if the Court of
    Appeals might have reached a different conclusion as an
    initial matter, it was not an unreasonable application of
    our precedent for the California Supreme Court to con­
    clude that Pinholster did not establish prejudice.20
    *    *  *
    The judgment of the United States Court of Appeals for
    the Ninth Circuit is reversed.
    It is so ordered.
    ——————
    20 Because Pinholster has failed to demonstrate that the adjudication
    of his claim based on the state-court record resulted in a decision
    “contrary to” or “involv[ing] an unreasonable application” of federal
    law, a writ of habeas corpus “shall not be granted” and our analysis is
    at an end. 
    28 U.S. C
    . §2254(d). We are barred from considering the
    evidence Pinholster submitted in the District Court that he contends
    additionally supports his claim. For that reason, we need not decide
    whether §2254(e)(2) prohibited the District Court from holding the
    evidentiary hearing or whether a district court may ever choose to hold
    an evidentiary hearing before it determines that §2254(d) has been
    satisfied.
    Cite as: 563 U. S. ____ (2011)           1
    ALITO, J., concurring
    SUPREME COURT OF THE UNITED STATES
    _________________
    No. 09–1088
    _________________
    VINCENT CULLEN, ACTING WARDEN, PETITIONER
    v. SCOTT LYNN PINHOLSTER
    ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF
    APPEALS FOR THE NINTH CIRCUIT
    [April 4, 2011]
    JUSTICE ALITO, concurring in part and concurring in the
    judgment.
    Although I concur in the Court’s judgment, I agree with
    the conclusion reached in Part I of the dissent, namely,
    that, when an evidentiary hearing is properly held in
    federal court, review under 
    28 U.S. C
    . §2254(d)(1) must
    take into account the evidence admitted at that hearing.
    As the dissent points out, refusing to consider the evidence
    received in the hearing in federal court gives §2254(e)(2)
    an implausibly narrow scope and will lead either to results
    that Congress surely did not intend or to the distortion of
    other provisions of the Antiterrorism and Effective Death
    Penalty Act of 1996 (AEDPA), 110 Stat. 1214, and the law
    on “cause and prejudice.” See post, at 9–12 (opinion of
    SOTOMAYOR, J.).
    Under AEDPA evidentiary hearings in federal court
    should be rare. The petitioner generally must have made
    a diligent effort to produce in state court the new evidence
    on which he seeks to rely. See §2254(e)(2); Williams v.
    Taylor, 
    529 U.S. 420
    , 433–434 (2000). If that requirement
    is not satisfied, the petitioner may establish the factual
    predicate for a claim in a federal-court hearing only if,
    among other things, “the facts underlying the claim would
    be sufficient to establish by clear and convincing evidence
    that but for constitutional error, no reasonable factfinder
    2                 CULLEN v. PINHOLSTER
    Opinion of ALITO, J.
    would have found the applicant guilty of the underlying
    offense.” §2254(e)(2)(B).
    Even when the petitioner does satisfy the diligence
    standard adopted in Williams v. 
    Taylor, supra
    , a hearing
    should not be held in federal court unless the new evi
    dence that the petitioner seeks to introduce was not and
    could not have been offered in the state-court proceeding.
    Section 2254(e)(2) bars a hearing in certain situations, but
    it does not mean that a hearing is allowed in all other
    situations. See Schriro v. Landrigan, 
    550 U.S. 465
    , 473–
    474 (2007). The whole thrust of AEDPA is essentially to
    reserve federal habeas relief for those cases in which the
    state courts acted unreasonably. See §§2254(d)(1), (2),
    (e)(1). Permitting a petitioner to obtain federal habeas
    relief on the basis of evidence that could have been but
    was not offered in state court would upset this scheme.
    In this case, for essentially the reasons set out in the
    dissent from the Court of Appeals’ en banc decision, see
    Pinholster v. Ayers, 
    590 F.3d 651
    , 688–691 (CA9 2009)
    (opinion of Kozinski, J.), I would hold that the federal
    court hearing should not have been held because respon
    dent did not diligently present his new evidence to the
    California courts. And I join all but Part II of the opinion
    of the Court, as I agree that the decision of the state court
    represented a reasonable application of clearly established
    Supreme Court precedent in light of the state-court record.
    Cite as: 563 U. S. ____ (2011)             1
    Opinion of BREYER, J.
    SUPREME COURT OF THE UNITED STATES
    _________________
    No. 09–1088
    _________________
    VINCENT CULLEN, ACTING WARDEN, PETITIONER
    v. SCOTT LYNN PINHOLSTER
    ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF
    APPEALS FOR THE NINTH CIRCUIT
    [April 4, 2011]
    JUSTICE BREYER, concurring in part and dissenting in
    part.
    I join Parts I and II of the Court’s opinion. I do not join
    Part III, for I would send this case back to the Court of
    Appeals so that it can apply the legal standards that Part
    II announces to the complex facts of this case. Compare
    ante, at 14–31 (majority opinion), with post, at 17–42
    (SOTOMAYOR, J., dissenting).
    Like the Court, I believe that its understanding of
    
    28 U.S. C
    . §2254(d)(1) does not leave AEDPA’s hearing
    section, §2254(e), without work to do. An offender who
    believes he is entitled to habeas relief must first present a
    claim (including his evidence) to the state courts. If the
    state courts reject the claim, then a federal habeas court
    may review that rejection on the basis of the materials
    considered by the state court. If the federal habeas court
    finds that the state-court decision fails (d)’s test (or if (d)
    does not apply), then an (e) hearing may be needed.
    For example, if the state-court rejection assumed the
    habeas petitioner’s facts (deciding that, even if those facts
    were true, federal law was not violated), then (after find
    ing the state court wrong on a (d) ground) an (e) hearing
    might be needed to determine whether the facts alleged
    were indeed true. Or if the state-court rejection rested on
    a state ground, which a federal habeas court found inade
    2                  CULLEN v. PINHOLSTER
    Opinion of BREYER, J.
    quate, then an (e) hearing might be needed to consider the
    petitioner’s (now unblocked) substantive federal claim. Or
    if the state-court rejection rested on only one of several
    related federal grounds (e.g., that counsel’s assistance was
    not “inadequate”), then, if the federal court found that the
    state court’s decision in respect to the ground it decided
    violated (d), an (e) hearing might be needed to consider
    other related parts of the whole constitutional claim (e.g.,
    whether the counsel’s “inadequate” assistance was also
    prejudicial). There may be other situations in which an (e)
    hearing is needed as well.
    In this case, however, we cannot say whether an (e)
    hearing is needed until we know whether the state court,
    in rejecting Pinholster’s claim on the basis presented to
    that state court, violated (d). (In my view, the lower
    courts’ analysis in respect to this matter is inadequate.)
    There is no role in (d) analysis for a habeas petitioner to
    introduce evidence that was not first presented to the
    state courts. But that does not mean that Pinholster is
    without recourse to present new evidence. He can always
    return to state court presenting new evidence not previ
    ously presented. If the state court again denies relief, he
    might be able to return to federal court to make claims
    related to the latest rejection, subject to AEDPA’s limita
    tions on successive petitions. See §2244.
    I am not trying to predict the future course of these
    proceedings. I point out only that, in my view, AEDPA is
    not designed to take necessary remedies from a habeas
    petitioner but to give the State a first opportunity to con
    sider most matters and to insist that federal courts prop
    erly respect state-court determinations.
    Cite as: 563 U. S. ____ (2011)           1
    SOTOMAYOR, J., dissenting
    SUPREME COURT OF THE UNITED STATES
    _________________
    No. 09–1088
    _________________
    VINCENT CULLEN, ACTING WARDEN, PETITIONER
    v. SCOTT LYNN PINHOLSTER
    ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF
    APPEALS FOR THE NINTH CIRCUIT
    [April 4, 2011]
    JUSTICE SOTOMAYOR, with whom JUSTICE GINSBURG
    and JUSTICE KAGAN join as to Part II, dissenting.
    Some habeas petitioners are unable to develop the fac
    tual basis of their claims in state court through no fault
    of their own. Congress recognized as much when it en
    acted the Antiterrorism and Effective Death Penalty Act of
    1996 (AEDPA), 110 Stat. 1214, and permitted therein the
    introduction of new evidence in federal habeas proceed
    ings in certain limited circumstances. See 
    28 U.S. C
    .
    §2254(e)(2). Under the Court’s novel interpretation of
    §2254(d)(1), however, federal courts must turn a blind eye
    to new evidence in deciding whether a petitioner has
    satisfied §2254(d)(1)’s threshold obstacle to federal habeas
    relief—even when it is clear that the petitioner would be
    entitled to relief in light of that evidence. In reading
    the statute to “compe[l]” this harsh result, ante, at 9,
    the Court ignores a key textual difference between
    §§2254(d)(1) and 2254(d)(2) and discards the previous
    understanding in our precedents that new evidence can, in
    fact, inform the §2254(d)(1) inquiry. I therefore dissent
    from the Court’s first holding.
    I also disagree with the Court that, even if the
    §2254(d)(1) analysis is limited to the state-court record,
    respondent Scott Pinholster failed to demonstrate that the
    California Supreme Court’s decision denying his ineffec
    2                 CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    tive-assistance-of-counsel claim was an unreasonable
    application of Strickland v. Washington, 
    466 U.S. 668
    (1984). There is no reason for the majority to decide
    whether the §2254(d)(1) analysis is limited to the state
    court record because Pinholster satisfied §2254(d)(1) on
    either the state- or federal-court record.
    I
    The Court first holds that, in determining whether a
    state-court decision is an unreasonable application of
    Supreme Court precedent under §2254(d)(1), “review . . . is
    limited to the record that was before the state court that
    adjudicated the claim on the merits.” Ante, at 9. New
    evidence adduced at a federal evidentiary hearing is
    now irrelevant to determining whether a petitioner has
    satisfied §2254(d)(1). This holding is unnecessary to pro
    mote AEDPA’s purposes, and it is inconsistent with the
    provision’s text, the structure of the statute, and our
    precedents.
    A
    To understand the significance of the majority’s holding,
    it is important to view the issue in context. AEDPA’s
    entire structure—which gives state courts the opportunity
    to decide factual and legal questions in the first instance—
    ensures that evidentiary hearings in federal habeas pro
    ceedings are very rare. See N. King, F. Cheesman, & B.
    Ostrom, Final Technical Report: Habeas Litigation in
    U. S. District Courts 35–36 (2007) (evidentiary hearings
    under AEDPA occur in 0.4 percent of noncapital cases and
    9.5 percent of capital cases). Even absent the new restric
    tion created by today’s holding, AEDPA erects multiple
    hurdles to a state prisoner’s ability to introduce new evi
    dence in a federal habeas proceeding.
    First, “[u]nder the exhaustion requirement, a habeas
    petitioner challenging a state conviction must first at
    Cite as: 563 U. S. ____ (2011)                 3
    SOTOMAYOR, J., dissenting
    tempt to present his claim in state court.” Harrington v.
    Richter, 562 U. S. ___, ___ (2011) (slip op., at 13); see also
    §2254(b)(1)(A). With certain narrow exceptions, federal
    courts cannot consider a claim at all, let alone accept new
    evidence relevant to the claim, if it has not been exhausted
    in state court.1 The exhaustion requirement thus reserves
    to state courts the first opportunity to resolve factual
    disputes relevant to a state prisoner’s claim.            See
    O’Sullivan v. Boerckel, 
    526 U.S. 838
    , 845 (1999).
    Second, the exhaustion requirement is “complement[ed]”
    by the standards set forth in §2254(d). Harrington, 562
    U. S., at ___ (slip op., at 14). Under this provision, a fed
    eral court may not grant habeas relief on any “claim that
    was adjudicated on the merits in State court proceedings”
    unless the adjudication
    “(1) resulted in a decision that was contrary to, or
    involved an unreasonable application of, clearly estab
    lished Federal law, as determined by the Supreme
    Court of the United States; or
    “(2) resulted in a decision that was based on an un
    reasonable determination of the facts in light of the
    evidence presented in the State court proceeding.”
    These standards “control whether to grant habeas relief.”
    Schriro v. Landrigan, 
    550 U.S. 465
    , 474 (2007). Accord
    ingly, we have said, if the factual allegations a petitioner
    seeks to prove at an evidentiary hearing would not satisfy
    these standards, there is no reason for a hearing. See 
    id., at 481.
    In such a case, the district court may exercise its
    “discretion to deny an evidentiary hearing.” Ibid.; see also
    infra, at 13–14. This approach makes eminent sense: If
    district courts held evidentiary hearings without first
    ——————
    1 Relatedly,a state prisoner must, as a general matter, properly ex
    haust his federal claims in state court to avoid having his claim de
    faulted on procedural grounds. See Coleman v. Thompson, 
    501 U.S. 722
    , 750 (1991).
    4                     CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    asking whether the evidence the petitioner seeks to pre
    sent would satisfy AEDPA’s demanding standards, they
    would needlessly prolong federal habeas proceedings.
    Third, even when a petitioner seeks to introduce new
    evidence that would entitle him to relief, AEDPA prohibits
    him from doing so, except in a narrow range of cases,
    unless he “made a reasonable attempt, in light of the
    information available at the time, to investigate and pur
    sue claims in state court.” Williams v. Taylor, 
    529 U.S. 420
    , 435 (2000) (Michael Williams). Thus, §2254(e)(2)
    provides:
    “If the applicant has failed to develop the factual basis
    of a claim in State court proceedings, the court shall
    not hold an evidentiary hearing on the claim unless
    the applicant shows that—
    “(A) the claim relies on—
    “(i) a new rule of constitutional law, made retroac
    tive to cases on collateral review by the Supreme
    Court, that was previously unavailable; or
    “(ii) a factual predicate that could not have been
    previously discovered through the exercise of due dili
    gence; and
    “(B) the facts underlying the claim would be suffi
    cient to establish by clear and convincing evidence
    that but for constitutional error, no reasonable fact
    finder would have found the applicant guilty of the
    underlying offense.”
    In Michael Williams, we construed the opening clause of
    this provision—which triggers the bar on evidentiary
    hearings—to apply when “there is lack of diligence, or
    some greater fault, attributable to the prisoner or the
    prisoner’s counsel.”2 
    Id., at 432.
    AEDPA thus bars an
    ——————
    2 Section 2254(e)(2) also governs an attempt to obtain relief “based on
    new evidence without an evidentiary hearing.” Holland v. Jackson, 
    542 U.S. 649
    , 653 (2004) (per curiam) (emphasis deleted).
    Cite as: 563 U. S. ____ (2011)     5
    SOTOMAYOR, J., dissenting
    evidentiary hearing for a nondiligent petitioner unless the
    petitioner can satisfy both §§2254(e)(2)(A) and (B), which
    few petitioners can. Section 2254(e)(2) in this way incen
    tivizes state petitioners to develop the factual basis of
    their claims in state court.
    To the limited extent that federal evidentiary hearings
    are available under AEDPA, they ensure that petitioners
    who diligently developed the factual basis of their claims
    in state court, discovered new evidence after the state
    court proceeding, and cannot return to state court retain
    the ability to access the Great Writ. See ante, at 2 (ALITO,
    J., concurring in part and concurring in judgment). “When
    Congress codified new rules governing this previously
    judicially managed area of law, it did so without losing
    sight of the fact that the ‘writ of habeas corpus plays a
    vital role in protecting constitutional rights.’ ” Holland v.
    Florida, 560 U. S. ___, ___ (2010) (slip op., at 16) (quoting
    Slack v. McDaniel, 
    529 U.S. 473
    , 483 (2000)). Allowing a
    petitioner to introduce new evidence at a hearing in the
    limited circumstance permitted by §2254(e)(2) does not
    upset the balance that Congress struck in AEDPA be
    tween the state and federal courts.           By construing
    §2254(d)(1) to do the work of other provisions in AEDPA,
    the majority has subverted Congress’ careful balance of
    responsibilities. It has also created unnecessarily a brand
    new set of procedural complexities that lower courts will
    have to confront.3
    B
    The majority’s interpretation of §2254(d)(1) finds no
    support in the provision’s text or the statute’s structure as
    a whole.
    1
    Section 2254(d)(1) requires district courts to ask
    ——————
    3 See,   e.g., nn. 5, 7, and 13, infra.
    6                  CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    whether a state-court adjudication on the merits “resulted
    in a decision that was contrary to, or involved an unrea
    sonable application of, clearly established Federal law, as
    determined by the Supreme Court of the United States.”
    Because this provision uses “backward-looking lan
    guage”—i.e., past-tense verbs—the majority believes that
    it limits review to the state-court record. Ante, at 9. But
    both §§2254(d)(1) and 2254(d)(2) use “backward-looking
    language,” and §2254(d)(2)—unlike §2254(d)(1)—expressly
    directs district courts to base their review on “the evidence
    presented in the State court proceeding.” If use of the past
    tense were sufficient to indicate Congress’ intent to re
    strict analysis to the state-court record, the phrase “in
    light of the evidence presented in the State court proceed
    ing” in §2254(d)(2) would be superfluous. The majority’s
    construction of §2254(d)(1) fails to give meaning to Con
    gress’ decision to include language referring to the evi
    dence presented to the state court in §2254(d)(2). Cf.
    Bates v. United States, 
    522 U.S. 23
    , 29–30 (1997) (“Where
    Congress includes particular language in one section of a
    statute but omits it in another section of the same Act, it
    is generally presumed that Congress acts intentionally
    and purposely in the disparate inclusion or exclusion”
    (internal quotation marks and brackets omitted)).
    Ignoring our usual “reluctan[ce] to treat statutory terms
    as surplusage in any setting,” TRW Inc. v. Andrews, 
    534 U.S. 19
    , 31 (2001) (internal quotation marks omitted), the
    majority characterizes the phrase appearing in §2254(d)(2)
    as mere “clarifying language,” ante, at 12, n. 7. It specu
    lates that “[t]he omission of clarifying language from
    §2254(d)(1) just as likely reflects Congress’ belief that such
    language was unnecessary as it does anything else.” Ante,
    at 12–13, n. 7. The argument that this phrase is merely
    “clarifying” might have more force, however, had Congress
    included this phrase in §2254(d)(1) but not in §2254(d)(2).
    As between the two provisions, §2254(d)(2)—which re
    Cite as: 563 U. S. ____ (2011)                     7
    SOTOMAYOR, J., dissenting
    quires review of the state court’s “determination of the
    facts”—more logically depends on the facts presented to
    the state court. Because this provision needs less clarifi
    cation on this point than §2254(d)(1), it is all the more
    telling that Congress included this phrase in §2254(d)(2)
    but elected to exclude it from §2254(d)(1).
    Unlike my colleagues in the majority, I refuse to assume
    that Congress simply engaged in sloppy drafting. The
    inclusion of this phrase in §2254(d)(2)—coupled with its
    omission     from     §2254(d)(2)’s   partner    provision,
    §2254(d)(1)—provides strong reason to think that Con
    gress did not intend for the §2254(d)(1) analysis to be
    limited categorically to “the evidence presented in the
    State court proceeding.”
    2
    The “ ‘broader context of the statute as a whole,’ ” ante,
    at 9 (quoting Robinson v. Shell Oil Co., 
    519 U.S. 337
    , 341
    (1997)), reinforces this conclusion. In particular, Con
    gress’ decision to include in AEDPA a provision,
    §2254(e)(2), that permits federal evidentiary hearings in
    certain circumstances provides further evidence that
    Congress did not intend to limit the §2254(d)(1) inquiry to
    the state-court record in every case.
    We have long recognized that some diligent habeas
    petitioners are unable to develop all of the facts support
    ing their claims in state court.4 As discussed above, in
    ——————
    4 See, e.g., Michael Williams, 
    529 U.S. 420
    , 432 (2000) (noting that
    diligent efforts to develop the facts might be “thwarted, for example, by
    the conduct of another or by happenstance”); 
    id., at 434
    (noting that the
    prosecution might have “concealed the facts” supporting “a claim which
    was pursued with diligence”); Townsend v. Sain, 
    372 U.S. 293
    , 313
    (1963) (requiring federal courts to grant evidentiary hearings when,
    inter alia, “the fact-finding procedure employed by the state court was
    not adequate to afford a full and fair hearing” or “there is a substantial
    allegation of newly discovered evidence”), overruled in part on other
    grounds by Keeney v. Tamayo-Reyes, 
    504 U.S. 1
    , 5 (1992).
    8                      CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    enacting AEDPA, Congress generally barred evidentiary
    hearings for petitioners who did not “exercise diligence in
    pursuing their claims” in state court. Michael 
    Williams, 529 U.S., at 436
    ; see also §2254(e)(2). Importantly, it did
    not impose any express limit on evidentiary hearings for
    petitioners who had been diligent in state court. See 
    id., at 436
    (“[T]he statute does not equate prisoners who exer
    cise diligence in pursuing their claims with those who do
    not”). For those petitioners, Congress left the decision to
    hold a hearing “to the sound discretion of district courts.”
    
    Landrigan, 550 U.S., at 473
    .
    Faced with situations in which a diligent petitioner
    offers additional evidence in federal court, the courts of
    appeals have taken two approaches to applying
    §2254(d)(1). Some courts have held that when a federal
    court admits new evidence supporting a claim adjudicated
    on the merits in state court, §2254(d)(1) does not apply at
    all and the federal court may review the claim de novo.
    See ante, at 12; Holland v. Jackson, 
    542 U.S. 649
    , 653
    (2004) (per curiam); see, e.g., Winston v. Kelly, 
    592 F.3d 535
    , 555–556 (CA4 2010). I agree with the majority’s
    rejection of this approach. See ante, at 12. It would un
    dermine the comity principles motivating AEDPA to de
    cline to defer to a state-court adjudication of a claim
    because the state court, through no fault of its own,
    lacked all the relevant evidence.5
    ——————
    5 Of
    course, §2254(d)(1) only applies when a state court has adjudi
    cated a claim on the merits. There may be situations in which new
    evidence supporting a claim adjudicated on the merits gives rise to an
    altogether different claim. See, e.g., Reply Brief for Petitioner 10–11
    (evidence withheld by the prosecutor relating to one claim may give rise
    to a separate claim under Brady v. Maryland, 
    373 U.S. 83
    (1963)). The
    majority opinion does not foreclose this possibility.
    I assume that the majority does not intend to suggest that review is
    limited to the state-court record when a petitioner’s inability to develop
    the facts supporting his claim was the fault of the state court itself. See
    generally Tr. of Oral Arg. in Bell v. Kelly, O. T. 2008, No. 07–1223.
    Cite as: 563 U. S. ____ (2011)            9
    SOTOMAYOR, J., dissenting
    Other courts of appeals, including the court below, have
    struck a more considered balance. These courts have held
    that §2254(d)(1) continues to apply but that new evidence
    properly presented in a federal hearing is relevant to the
    reasonableness of the state-court decision. See Pinholster
    v. Ayers, 
    590 F.3d 651
    , 668 (CA9 2009) (en banc) (“If the
    evidence is admissible under Michael Williams or
    §2254(e)(2), and if it does not render the petitioner’s
    claims unexhausted . . . , then it is properly considered in
    evaluating whether the legal conclusion reached by the
    state habeas court was a reasonable application of Su
    preme Court law”); accord, Wilson v. Mazzuca, 
    570 F.3d 490
    , 500 (CA2 2009); Pecoraro v. Walls, 
    286 F.3d 439
    , 443
    (CA7 2002); Valdez v. Cockrell, 
    274 F.3d 941
    , 952 (CA5
    2001). This approach accommodates the competing goals,
    reflected in §§2254(d) and 2254(e)(2), of according defer
    ence to reasonable state-court decisions and preserving
    the opportunity for diligent petitioners to present evidence
    to the federal court when they were unable to do so in
    state court.
    The majority charts a third, novel course that, so far as I
    am aware, no court of appeals has adopted: §2254(d)(1)
    continues to apply when a petitioner has additional evi
    dence that he was unable to present to the state court, but
    the district court cannot consider that evidence in deciding
    whether the petitioner has satisfied §2254(d)(1). The
    problem with this approach is its potential to bar federal
    habeas relief for diligent habeas petitioners who cannot
    present new evidence to a state court.
    Consider, for example, a petitioner who diligently at
    tempted in state court to develop the factual basis of a
    claim that prosecutors withheld exculpatory witness
    statements in violation of Brady v. Maryland, 
    373 U.S. 83
    (1963). The state court denied relief on the ground that
    the withheld evidence then known did not rise to the level
    of materiality required under Brady. Before the time for
    10                   CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    filing a federal habeas petition has expired, however, a
    state court orders the State to disclose additional docu
    ments the petitioner had timely requested under the
    State’s public records Act. The disclosed documents reveal
    that the State withheld other exculpatory witness state
    ments, but state law would not permit the petitioner to
    present the new evidence in a successive petition.6
    Under our precedent, if the petitioner had not presented
    his Brady claim to the state court at all, his claim would
    be deemed defaulted and the petitioner could attempt to
    show cause and prejudice to overcome the default. See
    Michael 
    Williams, 529 U.S., at 444
    ; see also n. 
    1, supra
    .
    If, however, the new evidence merely bolsters a Brady
    claim that was adjudicated on the merits in state court, it
    is unclear how the petitioner can obtain federal habeas
    relief after today’s holding. What may have been a rea
    sonable decision on the state-court record may no longer
    be reasonable in light of the new evidence. See Kyles v.
    Whitley, 
    514 U.S. 419
    , 436 (1995) (materiality of Brady
    evidence is viewed “collectively, not item by item”). Be
    cause the state court adjudicated the petitioner’s Brady
    claim on the merits, §2254(d)(1) would still apply. Yet,
    under the majority’s interpretation of §2254(d)(1), a fed
    eral court is now prohibited from considering the new
    evidence in determining the reasonableness of the state
    court decision.
    The majority’s interpretation of §2254(d)(1) thus sug
    gests the anomalous result that petitioners with new
    claims based on newly obtained evidence can obtain fed
    eral habeas relief if they can show cause and prejudice for
    their default but petitioners with newly obtained evidence
    supporting a claim adjudicated on the merits in state court
    ——————
    6 See, e.g., 
    id., at 37–38
    (statement by counsel for the respondent
    warden that Virginia law bars all successive habeas applications, even
    in cases where the petitioner has new evidence).
    Cite as: 563 U. S. ____ (2011)                   11
    SOTOMAYOR, J., dissenting
    cannot obtain federal habeas relief if they cannot first
    satisfy §2254(d)(1) without the new evidence. That the
    majority’s interpretation leads to this anomaly is good
    reason to conclude that its interpretation is wrong. See
    Keeney v. Tamayo-Reyes, 
    504 U.S. 1
    , 7–8 (1992) (“[I]t is
    . . . irrational to distinguish between failing to properly
    assert a federal claim in state court and failing in state
    court to properly develop such a claim”).
    The majority responds to this anomaly by suggesting
    that my hypothetical petitioner “may well [have] a new
    claim.”7 Ante, at 14, n. 10. This suggestion is puzzling.
    New evidence does not usually give rise to a new claim; it
    merely provides additional proof of a claim already adjudi
    cated on the merits.8 The majority presumably means
    to suggest that the petitioner might be able to obtain
    federal-court review of his new evidence if he can show
    cause and prejudice for his failure to present the “new”
    claim to a state court. In that scenario, however, the
    federal court would review the purportedly “new” claim de
    novo. The majority’s approach thus threatens to replace
    deferential review of new evidence under §2254(d)(1) with
    de novo review of new evidence in the form of “new”
    claims.9 Because it is unlikely that Congress intended
    de novo review—the result suggested by the majority’s
    opinion—it must have intended for district courts to
    consider newly discovered evidence in conducting the
    §2254(d)(1) analysis.
    ——————
    7 The majority declines, however, to provide any guidance to the lower
    courts on how to distinguish claims adjudicated on the merits from new
    claims.
    8 Even if it can fairly be argued that my hypothetical petitioner has a
    new claim, the majority fails to explain how a diligent petitioner with
    new evidence supporting an existing claim can present his new evi
    dence to a federal court.
    9 In this vein, it is the majority’s approach that “would not take seri
    ously AEDPA’s requirement that federal courts defer to state-court
    decisions.” Ante, at 10, n. 3.
    12                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    The majority’s reading of §2254(d)(1) appears ultimately
    to rest on its understanding that state courts must have
    the first opportunity to adjudicate habeas petitioners’
    claims. See ante, at 9–10 (“It would be contrary to
    [AEDPA’s exhaustion requirement] to allow a petitioner to
    overcome an adverse state-court decision with new evi
    dence introduced in a federal habeas court and reviewed
    by that court in the first instance effectively de novo”).10
    JUSTICE BREYER takes the same position. See ante, at 2
    (opinion concurring in part and dissenting in part)
    (AEDPA is designed “to give the State a first opportunity
    to consider most matters”). I fully agree that habeas
    petitioners must attempt to present evidence to state
    courts in the first instance, as does JUSTICE ALITO, see
    ante, at 2. Where I disagree with the majority is in my
    understanding that §2254(e)(2) already accomplishes this
    result.    By reading §2254(d)(1) to do the work of
    §2254(e)(2), the majority gives §2254(e)(2) an unnaturally
    cramped reading. As a result, the majority either has
    foreclosed habeas relief for diligent petitioners who,
    through no fault of their own, were unable to present
    exculpatory evidence to the state court that adjudicated
    their claims or has created a new set of procedural com
    plexities for the lower courts to navigate to ensure the
    availability of the Great Writ for diligent petitioners.
    3
    These considerations lead me to agree with the courts of
    appeals that have concluded that a federal court should
    assess the reasonableness of a state court’s application of
    clearly established federal law under §2254(d)(1) in light
    of evidence properly admitted in a federal evidentiary
    hearing. There is nothing “strange” about this approach.
    ——————
    10 Under my reading of §2254(d)(1), of course, the district court would
    review properly admitted new evidence through the deferential lens of
    §2254(d)(1), not de novo.
    Cite as: 563 U. S. ____ (2011)          13
    SOTOMAYOR, J., dissenting
    Ante, at 10. Under §2254(d)(1), federal courts routinely
    engage in analysis that the state court itself might never
    have conducted or did not conduct. For example, when a
    state court summarily denies a claim without explanation,
    as the California Supreme Court did here, district courts
    must deny habeas relief pursuant to §2254(d)(1) so long as
    “there is any reasonable argument” supporting the denial
    of the petitioner’s claim. Harrington, 562 U. S., at ___
    (slip op., at 16). We likewise ask whether a state-court
    decision unreasonably applied clearly established federal
    law when the state court issued a reasoned decision but
    failed to cite federal law altogether. See Early v. Packer,
    
    537 U.S. 3
    , 8 (2002) (per curiam). Determining whether a
    state court could reasonably have denied a petitioner relief
    in light of newly discovered evidence is not so different
    than determining whether there is any reasonable basis
    for a state court’s unreasoned decision.
    Admittedly, the text of §2254(d)(1), standing alone, does
    not compel either reading of that provision. But constru
    ing §2254(d)(1) to permit consideration of evidence prop
    erly introduced in federal court best accords with the text
    of §2254(d)(2) and AEDPA’s structure as a whole. By
    interpreting §2254(d)(1) to prevent nondiligent petitioners
    from gaming the system—the very purpose of
    §2254(e)(2)—the majority potentially has put habeas relief
    out of reach for diligent petitioners with meritorious
    claims based on new evidence.
    C
    The majority claims that its holding is “consistent” with
    our case law. Ante, at 10. Quite the opposite is true: Our
    cases reflect our previous understanding that evidence
    properly admitted pursuant to §2254(e)(2) is relevant to
    the §2254(d)(1) analysis.
    In Landrigan, JUSTICE THOMAS, the author of today’s
    opinion, confirmed this understanding of the interplay
    14                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    between §§2254(d)(1) and 2254(e)(2). As noted above, we
    admonished district courts to consider whether a peti
    tioner’s allegations, if proved true, would satisfy §2254(d)
    in determining whether to grant a hearing. After high
    lighting the deference owed to state courts under
    §§2254(d) and 2254(e)(1), we stated:
    “In deciding whether to grant an evidentiary hearing,
    a federal court must consider whether such a hearing
    could enable an applicant to prove the petition’s fac
    tual allegations, which, if true, would entitle the
    applicant to federal habeas relief. Because the defer
    ential standards prescribed by §2254 control whether
    to grant habeas relief, a federal court must take into
    account those standards in deciding whether an evi
    dentiary hearing is 
    appropriate.” 550 U.S., at 474
    (ci
    tation omitted).
    By instructing district courts to consider the §2254(d)
    standards in deciding whether to grant a hearing, we must
    have understood that the evidence admitted at a hearing
    could be considered in the §2254(d)(1) analysis. See Brief
    for American Civil Liberties Union as Amicus Curiae 9
    (“The whole point of Landrigan’s admonition that the
    court must decide whether to hold a hearing with an eye
    on §2254(d)(1) is that some proffers of evidence will not
    justify federal fact-finding in view of §2254(d)(1), but that
    other proffers of proof will”).11
    In Michael Williams, the warden argued that
    §2254(e)(2) bars an evidentiary hearing whenever a peti
    tioner was unable to develop the factual record in state
    court, “whether or not through his own fault or neglect.”
    ——————
    11 The majority overlooks this aspect of Landrigan. It quotes Landri
    gan’s observation that “if the record refutes the applicant’s factual
    allegations or otherwise precludes habeas relief, a district court is not
    required to hold an evidentiary 
    hearing,” 550 U.S., at 474
    , but that
    statement has no bearing on the question decided by the Court today.
    Cite as: 563 U. S. ____ (2011)                  15
    SOTOMAYOR, J., 
    dissenting 529 U.S., at 430
    . Under the warden’s argument, a peti
    tioner who did not develop the record in state court, what
    ever the reason, would be barred from presenting evidence
    to the federal court. In rejecting that argument, we
    observed:
    “A prisoner who developed his claim in state court and
    can prove the state court’s decision was ‘contrary to,
    or involved an unreasonable application of, clearly es
    tablished Federal law, as determined by the Supreme
    Court of the United States,’ is not barred from obtain
    ing relief by §2254(d)(1). If the opening clause of
    §2254(e)(2) covers a request for an evidentiary hear
    ing on a claim which was pursued with diligence but
    remained undeveloped in state court because, for in
    stance, the prosecution concealed the facts, a prisoner
    lacking clear and convincing evidence of innocence
    could be barred from a hearing on the claim even if he
    could satisfy §2254(d).” 
    Id., at 434
    (citation omitted;
    emphasis added).
    A petitioner in the latter situation would almost certainly
    be unable to “satisfy §2254(d)” without introducing the
    concealed facts in federal court. This passage thus reflects
    our understanding that, in some circumstances, a peti
    tioner might need an evidentiary hearing in federal court
    to prove the facts necessary to satisfy §2254(d). To avoid
    foreclosing habeas relief for such petitioners, we concluded
    that §2254(e)(2) could not bear the warden’s “harsh read
    ing,” which essentially would have held petitioners strictly
    at fault for their inability to develop the facts in state
    court. 
    Ibid. The majority today
    gives an equally “harsh
    reading” to §2254(d)(1) to achieve the result we rejected in
    Michael Williams.12
    ——————
    12 The majority claims that Michael Williams supports its reading of
    §2254(d)(1). With respect to one claim asserted by the petitioner, we
    observed that “[t]he Court of Appeals rejected this claim on the merits
    16                   CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    None of the other cases cited by the majority supports
    its result. In Williams v. Taylor, 
    529 U.S. 362
    (2000)
    (Terry Williams), we interpreted §2254(d)(1) to ask
    whether the state-court decision “identifies the correct
    governing legal principle from this Court’s decisions but
    unreasonably applies that principle to the facts of the
    prisoner’s case.” 
    Id., at 413.
    However, we had no reason
    to decide whether the §2254(d)(1) inquiry was limited to
    the state-court record, as the District Court did not hold
    an evidentiary hearing in that case. See 
    id., at 372.
       In Holland v. Jackson, we stated that “we have made
    clear that whether a state court’s decision was unreason
    able must be assessed in light of the record the court had
    before 
    it.” 542 U.S., at 652
    . In the next sentence, how
    ever, we observed that the evidence at issue “could have
    been the subject of an evidentiary hearing by the District
    Court, but only if respondent was not at fault in failing to
    develop that evidence in state court.” 
    Id., at 652–653.
    We
    proceeded to find that the evidence was not properly ad
    mitted under §2254(e)(2) before concluding that the Court
    of Appeals had erred in its §2254(d)(1) analysis. 
    Id., at 653;
    see also Bradshaw v. Richey, 
    546 U.S. 74
    , 79 (2005)
    (per curiam).
    In sum, our cases reflect our recognition that it is some
    times appropriate to consider new evidence in deciding
    whether a petitioner can satisfy §2254(d)(1). In reading
    our precedent to require the opposite conclusion, the ma
    jority disregards the concerns that motivated our decision
    in Michael Williams: Some petitioners, even if diligent,
    ——————
    under §2254(d)(1), so it is unnecessary to reach the question whether
    §2254(e)(2) would permit a hearing on the 
    claim.” 529 U.S., at 444
    .
    That statement merely reflects the fact that the Court of Appeals had
    rejected that claim under §2254(d)(1) without considering whether the
    petitioner was entitled to a hearing because the petitioner had not
    requested a hearing on that claim. See Williams v. Taylor, 
    189 F.3d 421
    , 425, 428–429 (CA4 1999).
    Cite as: 563 U. S. ____ (2011)                      17
    SOTOMAYOR, J., dissenting
    may be unable to develop the factual record in state court
    through no fault of their own. We should not interpret
    §2254(d)(1) to foreclose these diligent petitioners from
    accessing the Great Writ when the state court will not
    consider the new evidence and could not reasonably have
    reached the same conclusion with the new evidence before
    it.
    II
    I also disagree with the Court’s conclusion that the
    Court of Appeals erred in holding that Pinholster had
    satisfied §2254(d)(1) on the basis of the state-court
    record.13
    A
    The majority omits critical details relating to the per
    formance of Pinholster’s trial counsel, the mitigating
    evidence they failed to discover, and the history of these
    proceedings. I therefore highlight several aspects of the
    facts and history of this case.
    ——————
    13 I agree with the majority that the state-court record in this case
    consists of “the ‘allegations of [the] habeas corpus petition . . . and . . .
    any matter of record pertaining to the case.’ ” Ante, at 16, n. 12 (quot
    ing In re Hochberg, 
    2 Cal. 3d 870
    , 874, n. 2, 
    471 P.2d 1
    , 3–4, n. 2
    (1970); some internal quotation marks omitted).
    The majority does not decide which of the two state-court decisions
    should be reviewed. See ante, at 15, n. 11. One amicus argues that
    Pinholster must prove that both state-court decisions involved an
    unreasonable application of law. See Brief for Criminal Justice Legal
    Foundation as Amicus Curiae 26. This argument is based on amicus’
    understanding that the California Supreme Court rejected the second
    petition as successive and, alternatively, on the merits. The State has
    not argued, however, that the second ruling rests on a procedural
    ground. See ante, at 6, n. 2. When a state court denies two petitions on
    the merits and the difference between the petitions is that the second
    petition contains additional evidence supporting the petitioner’s claim,
    I see no reason why the petitioner must independently show that the
    first decision was unreasonable.
    18                 CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    1
    After the jury returned a guilty verdict, the court in
    structed the jury to return six days later for the penalty
    phase. This prompted discussion at sidebar regarding
    whether the State had provided notice of its intent to offer
    aggravating evidence. Pinholster’s court-appointed attor
    ney, Wilbur Dettmar, argued that the State should be
    precluded from offering aggravating evidence:
    “I am not presently prepared to offer anything by way
    of mitigation. If I was going to proceed on mitigation,
    the people would have the right to rebuttal with or
    without notice.
    “I took the position, since the people had not given
    notice, I had not prepared any evidence by way of miti
    gation. I would submit it on that basis.” 52 Re
    porter’s Tr. 7250 (hereinafter Tr.) (emphasis added).
    Undoubtedly anticipating that counsel might need addi
    tional time to prepare an adequate mitigation defense, the
    court asked Dettmar whether a continuance would be
    helpful in the event it ruled against him. He declined the
    offer on the spot, stating: “I think we would probably still
    go forward on Monday. Clearly the one person that comes
    to mind is the defendant’s mother. How much beyond that
    I don’t know. I don’t think the pa[ss]age of time would
    make a great deal of difference.” 
    Id., at 7257–7258.
    After
    hearing testimony, the court denied Pinholster’s motion to
    preclude aggravating evidence.
    At the penalty phase, defense counsel called only one
    witness: Pinholster’s mother, Burnice Brashear. Brashear
    testified that Pinholster “never really wanted for anything
    at home too much” and “had everything normally materi
    alwise that most people have.” 
    Id., at 7395.
    She said that
    Pinholster was “different” from his siblings, whom she
    characterized as “basically very good children.” 
    Id., at 7401–7402.
    Pinholster, she said, had a “friendly” relation
    Cite as: 563 U. S. ____ (2011)                19
    SOTOMAYOR, J., dissenting
    ship with his stepfather, although his stepfather “some
    times would lose his temper” with Pinholster, who “had a
    mind of his own.” 
    Id., at 7392–7393;
    see also 
    id., at 7293
    (stating that his stepfather was “at times” “abusive or
    near abusive”).
    Brashear provided brief testimony regarding Pinhol
    ster’s childhood. She described two car accidents—one
    when she ran over him in the driveway and one when he
    went through the windshield. 
    Id., at 7389–7391.
    She
    stated that he started failing school in the first grade and
    that the school eventually “sent him to [an] educationally
    handicapped class.” 
    Id., at 7393–7394.
    When Pinholster
    was 10, a psychologist recommended placing him in a
    mental institution, but she “didn’t think he was that far
    gone.” 
    Id., at 7395.
    A few years later, she testified, he
    spent six months in a state hospital for emotionally handi
    capped children. 
    Id., at 7402.
       According to Brashear, Pinholster had suffered from
    epilepsy since age 18, when he was beaten in jail. 
    Id., at 7397.
    She said that her family doctor, Dr. Dubin,
    had given him medication to treat the epilepsy. 
    Ibid. Brashear also suggested
    that Pinholster did not have long
    to live, stating that he had “a chip in his head floating
    around” and that “they don’t think—he won’t be here very
    much longer anyway.”14 
    Ibid. In closing argument,
    the prosecutor ridiculed Brashear’s
    testimony. See 53 
    id., at 7442
    (“She said his stepfather
    disciplined him. So what? I am sure you have all disci
    plined your children. I was disciplined myself”); 
    ibid. (“He was run
    over by a car when he was three years old. That’s
    very unfortunate. There is no evidence of any brain dam
    age. A lot of children get dropped, fall from their cribs or
    ——————
    14 The judge instructed the jury to disregard this testimony upon
    motion by the prosecutor, but the prosecutor then discussed the testi
    mony in her closing argument. See infra, at 33–34.
    20                   CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    whatever”); 
    id., at 7444–7445
    (“I submit to you that if this
    defendant truly had epilepsy, . . . a doctor would have been
    brought in to tell you that. Medical records, something”).
    The prosecutor also highlighted Brashear’s testimony
    about Pinholster’s stable home environment, arguing, “He
    came from a good home. You heard that he was not a
    deprived child. Had many things going for him, probably
    more than many children.” 
    Id., at 7442.
      Notwithstanding the meager mitigation case presented
    by Pinholster’s counsel, it took the jury two days to reach a
    decision to sentence Pinholster to death. His counsel later
    moved to modify the sentence to life imprisonment. In
    denying the motion, the trial judge stated, “The evidence
    which the defense offered concerning the defendant’s
    extenuation was merely some testimony from his mother
    that was not persuasive. His mother did not, in the court’s
    opinion, present any evidence which the court would find
    to be a moral justification or extenuation for his conduct.
    No witness supplied such evidence.” 54 
    id., at 7514.
                                     2
    After his conviction and sentence were affirmed on
    appeal, Pinholster filed a habeas petition in the California
    Supreme Court alleging, among other things, that his
    counsel had “unreasonably failed to investigate, prepare
    and present available mitigating evidence during penalty
    phase.” Record ER–103.
    Pinholster’s state-court petition included 121 exhibits.
    In a series of declarations, his trial attorney Harry
    Brainard (who had by then been disbarred) confirmed
    what Dettmar had forthrightly told the trial court:
    Brainard and Dettmar neither expected nor prepared to
    present mitigation evidence.15 See 
    id., at ER–333
    (“Mr.
    ——————
    15 By the time of Pinholster’s state-court habeas petition, Dettmar
    was deceased.
    Cite as: 563 U. S. ____ (2011)                  21
    SOTOMAYOR, J., dissenting
    Dettmar and I did not prepare a case in mitigation. We
    felt there would be no penalty phase hearing inasmuch as
    we did not receive written notice of evidence in aggrava
    tion pursuant to Penal Code §190.3”). Brainard further
    confirmed what was apparent from the mitigation case
    they eventually put on: They conducted virtually no miti
    gation investigation. See 
    id., at ER–182
    (“I have no recol
    lection of Mr. Dettmar having secured or reviewed any of
    Scott’s medical records, nor did I see any of Scott’s medical
    records. So far as I recollect, neither Mr. Dettmar nor
    myself interviewed any of Scott’s previous medical provid
    ers”); 
    id., at ER–183
    (“I do not recall interviewing or at
    tempting to interview Scott’s family members or any other
    persons regarding penalty phase testimony, except Mrs.
    Brashears [sic]”); 
    ibid. (“I have no
    recollection of seeing or
    attempting to secure Scott’s school records, juvenile re
    cords, medical records, or records of prior placements”);
    
    ibid. (“I have no
    recollection of interviewing or attempting
    to interview Scott’s former school teachers, counselors, or
    juvenile officers”).16
    Statements by relatives (none of whom trial counsel had
    attempted to interview regarding Pinholster’s background)
    and documentary evidence revealed that the picture of
    Pinholster’s family life painted by his mother at trial was
    false. Pinholster was “raised in chaos and poverty.” 
    Id., at ER–312.
    A relative remembered seeing the children
    mix together flour and water in an attempt to get some
    thing to eat. Pinholster’s stepfather beat him several
    times a week, including at least once with a two-by-four
    board. “There was so much violence in [the] home” that
    Pinholster’s brother “dreaded coming home each day.” 
    Id., at ER–313.
    Pinholster’s half sister was removed from the
    home as a result of a beating by his stepfather.
    ——————
    16 Counsel’s billing records, which were before the California Supreme
    Court as part of the trial record, confirmed Brainard’s recollection.
    22                   CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    Documentary evidence showed, directly contrary to
    Brashear’s trial testimony, that Pinholster’s siblings had
    very troubled pasts. Pinholster’s elder brother was ar
    rested for armed burglary, robbery, and forcible rape of a
    14-year-old with a deadly weapon. While in custody, he
    was diagnosed as “catatonic-like” and “acutely psychotic,
    probably suffering some type of schizophrenia.” 
    Id., at ER–219,
    ER–224. He later committed suicide.17 Pinhol
    ster’s half sister, a recovering alcoholic, had been made a
    ward of the juvenile court for prostitution and forcible
    sexual battery on a 14-year-old.
    Pinholster’s petition and exhibits described a long his
    tory of emotional disturbance and neurological problems.
    A former schoolteacher stated that, as a child, Pinholster
    “seemed incapable of relating either to his peers or to
    adults,” that “[i]t was even hard to maintain eye contact
    with him,” and that “[h]is hyperactivity was so extreme
    that [she] formed the opinion it probably had an organic
    base.” 
    Id., at ER–231.
    School records revealed that he
    “talk[ed] to self continuously,” had “many grimaces,”
    fought in his sleep, and could “control self for only 1 hour
    per day.” 
    Id., at ER–230,
    ER–233. He “show[ed] progres
    sive deterioration each semester since Kindergarten.” 
    Id., at ER–230.
    School officials recommended placement in a
    school for emotionally handicapped students and referral
    to a neurologist. At age nine, he had an abnormal EEG,
    revealing “an organic basis for his behavior.” 
    Id., at ER–
    157, ER–234. Just months before the homicides, a doctor
    recommended placement in the Hope Psychiatric Insti
    tute, but this did not occur.
    This and other evidence attached to the petition was
    ——————
    17 Accordingto Pinholster’s half sister, “The death of our brother Al
    vin was a severe emotional blow to me and to Scott. I believed Scott’s
    substance abuse (heroin) arose following and as a result of Alvin’s
    death.” Record ER–314.
    Cite as: 563 U. S. ____ (2011)                  23
    SOTOMAYOR, J., dissenting
    summarized in a declaration by Dr. George Woods. Dr.
    Woods opined that Pinholster “suffer[ed] from severe and
    long standing seizure disorders,” 
    id., at ER–156,
    that his
    childhood head traumas “may have been the precipitating
    factors for [his] seizure disorder,” 
    id., at ER–157,
    and that
    he suffered from bipolar mood disorder. He pointed to
    trial testimony that immediately before the burglary on
    the night of the homicides, Pinholster announced that he
    “ ‘ha[d] a message from God’ ”—which Dr. Woods believed
    to reflect “[a]uditory hallucinations” and “severe psycho
    sis.” 
    Id., at ER–
    169. He concluded that at the time of the
    homicides Pinholster “was suffering from bipolar mood
    disorder with psychotic ideation and was suffering a com
    plex partial seizure.” 
    Id., at ER–
    170. He also observed
    that Pinholster’s “grossly dysfunctional family, the abuse
    he received as a child, his history of suffering from sub
    stantial seizure and mood disorders, his frequently un
    treated psychiatric and psychological disabilities and his
    educational handicaps were relevant circumstances which
    would extenuate the gravity of the crime.” 
    Id., at ER–
    171.
    On the basis of Pinholster’s submission, the California
    Supreme Court denied Pinholster’s ineffective-assistance
    of-counsel claim.
    Pinholster then filed a habeas petition in Federal Dis
    trict Court. He included an additional exhibit: a declara
    tion by Dr. John Stalberg, a psychiatrist who had hastily
    examined Pinholster and produced a two-page report in
    the middle of the original trial.18 After reviewing the new
    material collected by Pinholster’s habeas counsel, Dr.
    Stalberg stated that the available evidence showed a
    ——————
    18 Counsel had arranged for Dr. Stalberg to examine Pinholster in the
    middle of his original trial. The only documents they provided to him
    were police reports relating to the case and a 1978 probation report. In
    a two-page report that focused primarily on Pinholster’s mental state at
    the time of the offenses, Dr. Stalberg concluded that Pinholster had
    “psychopathic personality traits.” 
    Id., at ER–
    187.
    24                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    familial history of “severe psychiatric disorders,” “a history
    of seizure disorders of unknown etiology,” “repeated head
    traumas,” “an abnormal EEG,” and “evidence of mental
    disturbance during Mr. Pinholster’s childhood and some
    degree of brain damage.” 
    Id., at ER–
    493. He also opined
    that “there [was] voluminous mitigating evidence which
    includes a childhood of physical abuse, emotional neglect,
    and a family history of mental illness and criminal behav
    ior.” 
    Id., at ER–
    494.
    The District Court stayed the federal proceedings while
    Pinholster sought state-court review of claims the District
    Court deemed unexhausted. Pinholster’s second habeas
    submission to the California Supreme Court included
    Stalberg’s declaration. That court summarily denied
    Pinholster’s petition on the merits.
    Pinholster returned to Federal District Court and filed
    an amended petition. After an evidentiary hearing, the
    District Court concluded that Pinholster had demon
    strated deficient performance and prejudice under Strick
    land.19 The Ninth Circuit, sitting en banc, affirmed. 
    590 F.3d 651
    .
    B
    As the majority notes, Pinholster’s claim arises under
    Strickland v. Washington. “The benchmark for judging
    any claim of ineffectiveness [under Strickland] must be
    whether counsel’s conduct so undermined the proper
    functioning of the adversarial process that the trial cannot
    be relied on as having produced a just result.” 466 U. S.,
    ——————
    19 The District Court based its decision on the evidence adduced at an
    evidentiary hearing. The District Court did not apply 
    28 U.S. C
    .
    §2254(d) because it thought, erroneously, that the California Supreme
    Court had not adjudicated Pinholster’s claim on the merits. App. to
    Pet. for Cert. 257. For the reasons I discuss, however, the District
    Court could have concluded that Pinholster had satisfied §2254(d)(1) on
    the basis of the state-court record alone.
    Cite as: 563 U. S. ____ (2011)             25
    SOTOMAYOR, J., dissenting
    at 686. To satisfy this benchmark, a defendant must show
    both that “counsel’s performance was deficient” and that
    “the deficient performance prejudiced the defense.” 
    Id., at 687.
       When §2254(d)(1) applies, the question is whether “ ‘fair
    minded jurists could disagree’ on the correctness of the
    state court’s decision.” Harrington, 562 U. S., at ___ (slip
    op., at 11) (quoting Yarborough v. Alvarado, 
    541 U.S. 652
    ,
    664 (2004)). When the state court rejected a Strickland
    claim on the pleadings assuming the allegations to be
    true, as here, see ante, at 16, n. 12, the federal court must
    ask whether “there is any reasonable argument” support
    ing the state court’s conclusion that the petitioner’s allega
    tions did not state a claim, Harrington, 562 U. S., at ___
    (slip op., at 16). This standard is “difficult,” but not im
    possible, “to meet.” Id., at ___ (slip op., at 12). This case is
    one in which fairminded jurists could not disagree that the
    state court erred.
    C
    Under Strickland, “the defendant must show that coun
    sel’s representation fell below an objective standard of
    reasonableness,” measured according to “prevailing pro
    fessional 
    norms.” 466 U.S., at 688
    . We “indulge a strong
    presumption that counsel’s conduct falls within the wide
    range of reasonable professional assistance.” 
    Id., at 689.
    When §2254(d) applies, federal-court review is “ ‘doubly’ ”
    deferential. Harrington, 562 U. S., at ___ (slip op., at 16)
    (quoting Knowles v. Mirzayance, 556 U. S. ___, ___ (2009)
    (slip op., at 11)). In the present AEDPA posture, “[t]he
    question is whether there is any reasonable argument that
    counsel satisfied Strickland’s deferential standard.” Har
    rington, 562 U. S., at ___ (slip op., at 16). Here, there is
    none.
    The majority surmises that counsel decided on a strat
    egy “to get the prosecution’s aggravation witnesses ex
    26                     CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    cluded for lack of notice, and if that failed, to put on Pin
    holster’s mother.” Ante, at 19. This is the sort of “ ‘post
    hoc rationalization’ for counsel’s decisionmaking that
    contradicts the available evidence of counsel’s actions”
    that courts cannot indulge. Harrington, 562 U. S., at ___
    (slip op., at 20) (quoting Wiggins v. Smith, 
    539 U.S. 510
    ,
    526–527 (2003)). The majority’s explanation for counsel’s
    conduct contradicts the best available evidence of counsel’s
    actions: Dettmar’s frank, contemporaneous statement to
    the trial judge that he “had not prepared any evidence by
    way of mitigation.” 52 Tr. 7250. The majority’s conjecture
    that counsel had in fact prepared a mitigation defense,
    based primarily on isolated entries in counsel’s billing
    records, requires it to assume that Dettmar was lying to
    the trial judge.20
    In any event, even if Pinholster’s counsel had a strategic
    reason for their actions, that would not automatically
    render their actions reasonable. For example, had counsel
    decided their best option was to move to exclude the ag
    gravating evidence, it would have been unreasonable to
    forgo a mitigation investigation on the hope that the mo
    tion would be granted. With a client’s life at stake, it
    would “flou[t] prudence,” Rompilla v. Beard, 
    545 U.S. 374
    ,
    ——————
    20 The majority misleadingly cites entries showing that counsel were
    preparing Brashear’s penalty phase testimony after counsel learned
    that the State intended to present aggravation evidence. The cited
    entries predating that event show only that counsel conducted about
    one day’s worth of investigation—consisting of talking to Brashear and
    researching epilepsy—two months before the penalty phase. See 3
    Clerk’s Tr. 798 (1.5-hour phone call to Brashear on Jan. 13); 
    id., at 864
    ,
    869 (3-hour meeting with Brashear regarding “childhood problems” on
    Feb. 23); 
    id., at 869
    (3.5 hours for “[r]esearch re; epilepsy and conf. with
    nurse” on Feb. 25). There is no evidence in the records that counsel
    actually planned to present mitigating evidence. Indeed, their complete
    failure to follow up on any of the information they learned in their
    minimal investigation only confirms that they were not planning to
    present mitigating evidence. See infra, at 29–31.
    Cite as: 563 U. S. ____ (2011)           27
    SOTOMAYOR, J., dissenting
    389 (2005), for an attorney to rely on the possibility that
    the court might preclude aggravating evidence pursuant
    to a “legal technicality” without any backup plan in place
    in case the court denied the motion, ante, at 19. No rea
    sonable attorney would pursue such a risky strategy. I do
    not understand the majority to suggest otherwise.
    Instead, I understand the majority’s conclusion that
    counsel’s actions were reasonable to rest on its belief that
    they did have a backup plan: a family-sympathy defense.
    In reaching this conclusion, the majority commits the
    same Strickland error that we corrected, applying
    §2254(d)(1), in Wiggins: It holds a purportedly “tactical
    judgment” to be reasonable without assessing “the ade
    quacy of the investigatio[n] supporting [that] 
    judgmen[t],” 539 U.S., at 521
    . As we stated in Strickland:
    “[S]trategic choices made after thorough investigation
    of law and facts relevant to plausible options are vir
    tually unchallengeable; and strategic choices made af
    ter less than complete investigation are reasonable
    precisely to the extent that reasonable professional
    judgments support the limitations on investigation.
    In other words, counsel has a duty to make reasonable
    investigations or to make a reasonable decision that
    makes particular investigations unnecessary. In any
    ineffectiveness case, a particular decision not to inves
    tigate must be directly assessed for reasonableness in
    all the circumstances, applying a heavy measure of
    deference to counsel’s 
    judgments.” 466 U.S., at 690
    –
    691.
    We have repeatedly applied this principle since Strick
    land. See Sears v. Upton, 561 U. S. ___, ___ (2010) (per
    curiam) (slip op., at 9); Porter v. McCollum, 558 U. S. ___,
    ___ (2009) (per curiam) (slip op., at 10); Wiggins, 539 U. S.,
    28                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    at 527; Terry 
    Williams, 529 U.S., at 396
    .21
    As these cases make clear, the prevailing professional
    norms at the time of Pinholster’s trial required his attor
    neys to “conduct a thorough investigation of the defen
    dant’s background,” 
    ibid. (citing 1 ABA
    Standards for
    Criminal Justice 4–4.1, commentary, p. 4–55 (2d ed. 1980)
    (hereinafter ABA Standards)), or “to make a reasonable
    decision that makes particular investigations unneces
    sary,” 
    Strickland, 466 U.S., at 691
    .22 “In judging the
    defense’s investigation, as in applying Strickland gener
    ally, hindsight is discounted by pegging adequacy to ‘coun
    sel’s perspective at the time’ investigative decisions are
    made, and by giving a ‘heavy measure of deference to
    counsel’s judgments.’ ” 
    Rompilla, 545 U.S., at 381
    (quot
    ing 
    Strickland, 466 U.S., at 689
    , 691; citation omitted). In
    some cases, “reasonably diligent counsel may draw a line
    when they have good reason to think further investigation
    would be a waste.” 
    Rompilla, 545 U.S., at 383
    ; see, e.g.,
    Bobby v. Van Hook, 558 U. S. ___, ___ (2009) (per curiam)
    (slip op., at 8); Burger v. Kemp, 
    483 U.S. 776
    , 794–795
    (1987). In other cases, however, Strickland requires fur
    ther investigation.
    ——————
    21 I do not doubt that a decision to present a family-sympathy mitiga
    tion defense might be consistent “with the standard of professional
    competence in capital cases that prevailed in Los Angeles in 1984” in
    some cases. Ante, at 24. My point is that even if counsel made a
    strategic decision to proceed with such a defense, that decision was
    unreasonable because it was based on an unreasonably incomplete
    investigation.
    22 See also 1 ABA Standards 4–4.1, commentary, at 4–55 (“Informa
    tion concerning the defendant’s background, education, employment
    record, mental and emotional stability, family relationships, and the
    like, will be relevant, as will mitigating circumstances surrounding the
    commission of the offense itself”). As we recognized in Strickland, the
    ABA Standards, though not dispositive, “are guides to determining
    what is 
    reasonable.” 466 U.S., at 688
    ; see also Wiggins v. Smith, 
    539 U.S. 510
    , 524 (2003).
    Cite as: 563 U. S. ____ (2011)                    29
    SOTOMAYOR, J., dissenting
    Wiggins is illustrative of the competence we have re
    quired of counsel in a capital case. There, counsel’s in
    vestigation was limited to three sources: psychological
    testing, a presentencing report, and Department of Social
    Services 
    records. 539 U.S., at 523
    –524. The records
    revealed that the petitioner’s mother was an alcoholic,
    that he displayed emotional difficulties in foster care, that
    he was frequently absent from school, and that on one
    occasion, his mother left him alone for days without food.
    
    Id., at 525.
    In these circumstances, we concluded, “any
    reasonably competent attorney would have realized that
    pursuing these leads was necessary to making an in
    formed choice among possible defenses.” 
    Ibid. Accord ingly, we
    held, the state court’s assumption that counsel’s
    investigation was adequate was an unreasonable applica
    tion of 
    Strickland. 539 U.S., at 528
    .23
    This case is remarkably similar to Wiggins. As the
    majority reads the record, counsel’s mitigation investiga
    tion consisted of talking to Pinholster’s mother, consulting
    with Dr. Stalberg, and researching epilepsy.24 Ante, at 20.
    What little information counsel gleaned from this “rudi
    mentary” investigation, 
    Wiggins, 539 U.S., at 524
    , would
    have led any reasonable attorney “to investigate further,”
    
    id., at 527.
    Counsel learned from Pinholster’s mother that
    he attended a class for educationally handicapped chil
    dren, that a psychologist had recommended placing him in
    a mental institution, and that he spent time in a state
    ——————
    23 As the majority notes, see ante, at 24–25, Wiggins’ trial counsel
    acknowledged that the investigation he conducted was inconsistent
    with standard practice in Maryland. 
    See 539 U.S., at 524
    . We inde
    pendently concluded, however, that the investigation “was also unrea
    sonable in light of what counsel actually discovered in the . . . records.”
    
    Id., at 525
    (emphasis added).
    24 The majority also posits that Brainard likely spent time preparing
    Pinholster’s brother Terry. However, Terry averred in a declaration
    that Pinholster’s attorneys “never asked [him] any questions relating to
    Scott’s background or [their] family history.” Record ER–313.
    30                CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    hospital for emotionally handicapped children. They knew
    that Pinholster had been diagnosed with epilepsy.
    “[A]ny reasonably competent attorney would have real
    ized that pursuing” the leads suggested by this informa
    tion “was necessary to making an informed choice among
    possible defenses.” 
    Id., at 525
    ; see also Penry v. Lynaugh,
    
    492 U.S. 302
    , 319 (1989) (“[E]vidence about the defen
    dant’s background and character is relevant because of the
    belief, long held by this society, that defendants who
    commit criminal acts that are attributable to a disadvan
    taged background, or to emotional and mental problems,
    may be less culpable than defendants who have no such
    excuse” (internal quotation marks omitted)). Yet counsel
    made no effort to obtain the readily available evidence
    suggested by the information they learned, such as Pin
    holster’s schooling or medical records, or to contact
    Pinholster’s school authorities. They did not contact Dr.
    Dubin or the many other health-care providers who had
    treated Pinholster. Put simply, counsel “failed to act while
    potentially powerful mitigating evidence stared them in
    the face.” Bobby, 558 U. S., at ___ (slip op., at 8) (citing
    
    Wiggins, 539 U.S., at 525
    ).
    The “impediments” facing counsel, ante, at 21, did not
    justify their minimal investigation. It is true that Pinhol
    ster was “an unsympathetic client.” 
    Ibid. But this fact
    compounds, rather than excuses, counsel’s deficiency in
    ignoring the glaring avenues of investigation that could
    explain why Pinholster was the way he was. See Sears,
    561 U. S., at ___ (slip op., at 7) (“This evidence might not
    have made Sears any more likable to the jury, but it might
    well have helped the jury understand Sears, and his hor
    rendous acts—especially in light of his purportedly stable
    upbringing”). Nor can Dr. Stalberg’s two-page report,
    which was based on a very limited record and focused
    primarily on Pinholster’s mental state at the time of
    the homicides, excuse counsel’s failure to investigate the
    Cite as: 563 U. S. ____ (2011)                  31
    SOTOMAYOR, J., dissenting
    broader range of potential mitigating circumstances.
    “The record of the actual sentencing proceedings under
    scores the unreasonableness of counsel’s conduct by
    suggesting that their failure to investigate thoroughly re
    sulted from inattention, not reasoned strategic judgment.”
    
    Wiggins, 539 U.S., at 526
    . Dettmar told the trial judge
    that he was unprepared to present any mitigation evi
    dence. The mitigation case that counsel eventually put on
    can be described, at best, as “halfhearted.” 
    Ibid. Counsel made no
    effort to bolster Brashear’s self-interested testi
    mony with school or medical records, as the prosecutor
    effectively emphasized in closing argument. And because
    they did not pursue obvious leads, they failed to recognize
    that Brashear’s testimony painting Pinholster as the bad
    apple in a normal, nondeprived family was false.
    In denying Pinholster’s claim, the California Supreme
    Court necessarily overlooked Strickland’s clearly estab
    lished admonition that “strategic choices made after less
    than complete investigation are reasonable precisely to
    the extent that reasonable professional judgments support
    the 
    limitations.” 466 U.S., at 690
    –691. As in Wiggins, in
    light of the information available to Pinholster’s counsel, it
    is plain that “reasonable professional judgments” could not
    have supported their woefully inadequate 
    investigation.25 466 U.S., at 691
    . Accordingly, the California Supreme
    Court could not reasonably have concluded that Pinholster
    ——————
    25 The majority chastises the Court of Appeals for “attributing strict
    rules to this Court’s recent case law.” Ante, at 24. I agree that courts
    should not interpret our cases to prescribe strict rules regarding the
    required scope of mitigation investigations. See Rompilla v. Beard, 
    545 U.S. 374
    , 394 (2005) (O’Connor, J., concurring) (noting “our longstand
    ing case-by-case approach to determining whether an attorney’s per
    formance was unconstitutionally deficient under Strickland”). The
    Ninth Circuit, however, did no such thing. It appropriately gave
    thoughtful consideration to the guideposts contained in these cases,
    just as we have previously done. See, e.g., Bobby v. Van Hook, 558
    U. S. ___, ___ (2009) (per curiam) (slip op., at 8).
    32                CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    had failed to allege that his counsel’s investigation was
    inadequate under Strickland.
    D
    The majority also concludes that the California Supreme
    Court could reasonably have concluded that Pinholster did
    not state a claim of prejudice. This conclusion, in light of
    the overwhelming mitigating evidence that was not before
    the jury, is wrong. To establish prejudice, “[t]he defendant
    must show that there is a reasonable probability that, but
    for counsel’s unprofessional errors, the result of the pro
    ceeding would have been different.” 
    Id., at 694.
    When a
    habeas petitioner challenges a death sentence, “the ques
    tion is whether there is a reasonable probability that,
    absent the errors, the sentencer . . . would have concluded
    that the balance of aggravating and mitigating circum
    stances did not warrant death.” 
    Id., at 695.
    This inquiry
    requires evaluating “the totality of the available mitiga
    tion evidence—both that adduced at trial, and the evi
    dence adduced in the habeas proceeding—in reweighing it
    against the evidence in aggravation.” Terry 
    Williams, 529 U.S., at 397
    –398. The ultimate question in this case is
    whether, taking into account all the mitigating and aggra
    vating evidence, “there is a reasonable probability that at
    least one juror would have struck a different balance.”
    
    Wiggins, 539 U.S., at 537
    ; see Cal. Penal Code Ann.
    §190.4(b) (West 2008) (requiring a unanimous jury verdict
    to impose a death sentence).
    1
    Like the majority, I first consider the aggravating and
    mitigating evidence presented at trial. By virtue of its
    verdict in the guilt phase, the jury had already concluded
    that Pinholster had stabbed and killed the victims. As the
    majority states, the jury saw Pinholster “revel” in his
    history of burglaries during the guilt phase. Ante, at 26.
    Cite as: 563 U. S. ____ (2011)                   33
    SOTOMAYOR, J., dissenting
    The jury heard evidence of Pinholster’s violent tendencies:
    He had kidnapped someone with a knife, cut a person in
    the arm with a razor, and had a history of hitting and
    kicking people. He threatened to kill the State’s lead
    witness. And he had an extensive disciplinary record in
    jail.
    Brashear offered brief testimony that was apparently
    intended to be mitigating. 
    See supra, at 19
    –20; see also
    ante, at 27–28.26 However, as the prosecutor argued,
    Brashear was not a neutral witness. See 53 Tr. 7441 (“A
    mother clearly loves her son, ladies and gentlemen.
    Clearly not the most unbiased witness in the world”).
    Notwithstanding Brashear’s obvious self-interest, counsel
    failed to offer readily available, objective evidence that
    would have substantiated and expanded on her testimony.
    Their failure to do so allowed the prosecutor to belittle her
    testimony in closing argument. 
    See supra, at 19
    –20. And
    Brashear’s statement that Pinholster would not be alive
    much longer because he had “a chip in his head floating
    around,” 52 Tr. 7397, could only have undermined her
    credibility, as the prosecutor urged, see 53 
    id., at 7447
    (“Does she want you to believe sometime before he got to
    ——————
    26 The majority mischaracterizes several aspects of Brashear’s testi
    mony. Although Brashear testified that the family “didn’t have lots of
    money,” she followed up that comment by stating that Pinholster did
    not bring friends to the house because “it was too nice a house.” 52 Tr.
    7404. The prosecutor did not understand Brashear to have testified
    that Pinholster’s childhood was deprived. See 53 
    id., at 7442
    (“You
    heard that he was not a deprived child”). Nor did the California Su
    preme Court on direct appeal. People v. Pinholster, 
    1 Cal. 4th 865
    , 910,
    
    824 P.2d 571
    , 587 (1992).
    Brashear did testify that Pinholster’s stepfather tried to “discipline”
    him and that he was “at times” “abusive or near abusive.” 52 Tr. 7392–
    7393. She suggested, however, that Pinholster deserved the “disci
    pline” he received. See, e.g., 
    id., at 7392
    (“Scott was always—he had a
    mind of his own”). It is unlikely the jury understood Brashear to be
    suggesting that her husband routinely beat Pinholster. The prosecutor
    did not come away with this understanding. See 53 
    id., at 7442
    .
    34                 CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    country jail some doctor looked in a crystal ball and
    said, ‘In three years you are going to die’? That’s ridicu
    lous”). The trial judge was thoroughly unimpressed with
    Brashear’s testimony. 
    See supra, at 20
    .
    Moreover, the evidence presented in Pinholster’s state
    court petition revealed that Brashear distorted facts in her
    testimony in ways that undermined Pinholster’s mitiga
    tion case. As in Sears, 561 U. S., at ___ (slip op., at 3), the
    prosecutor used Brashear’s testimony that Pinholster
    came from a good family against him. See 53 Tr. 7442.
    In sum, counsel presented little in the way of mitigating
    evidence, and the prosecutor effectively used their half
    hearted attempt to present a mitigation case to advocate
    for the death penalty. The jury nonetheless took two days
    to reach a decision to impose a death sentence.
    2
    The additional mitigating evidence presented to the
    California Supreme Court “adds up to a mitigation case
    that bears no relation” to Brashear’s unsubstantiated
    testimony. 
    Rompilla, 545 U.S., at 393
    .
    Assuming the evidence presented to the California
    Supreme Court to be true, as that court was required to
    do, the new mitigating evidence presented to that court
    would have shown that Pinholster was raised in “chaos
    and poverty.” Record ER–312. The family home was filled
    with violence. Pinholster’s siblings had extremely trou
    bled pasts. There was substantial evidence of “mental
    disturbance during Mr. Pinholster’s childhood and some
    degree of brain damage.” 
    Id., at ER–
    493.
    Dr. Woods concluded that Pinholster’s aggressive con
    duct resulted from bipolar mood disorder. Just months
    before the murders, a doctor had recommended that Pin
    holster be sent to a psychiatric institute. Dr. Woods also
    explained that Pinholster’s bizarre behavior before the
    murders reflected “[a]uditory hallucinations” and “severe
    Cite as: 563 U. S. ____ (2011)           35
    SOTOMAYOR, J., dissenting
    psychosis.” 
    Id., at ER–
    169. The available records con
    firmed that Pinholster suffered from longstanding seizure
    disorders, which may have been caused by his childhood
    head injuries.
    On this record, I do not see how it can be said that “[t]he
    ‘new’ evidence largely duplicated the mitigation evidence
    at trial.” Ante, at 29; see Arizona v. Fulminante, 
    499 U.S. 279
    , 298–299 (1991) (evidence is not “merely cumulative”
    if it corroborates other evidence that is “unbelievable” on
    its own). Brashear’s self-interested testimony was not
    confirmed with objective evidence, as the prosecutor high
    lighted. The new evidence would have “destroyed the
    [relatively] benign conception of [Pinholster’s] upbringing”
    presented by his mother. 
    Rompilla, 545 U.S., at 391
    . The
    jury heard no testimony at all that Pinholster likely suf
    fered from brain damage or bipolar mood disorder, and
    counsel offered no evidence to help the jury understand
    the likely effect of Pinholster’s head injuries or his bizarre
    behavior on the night of the homicides. The jury heard no
    testimony recounting the substantial evidence of Pinhol
    ster’s likely neurological problems. And it heard no medi
    cal evidence that Pinholster suffered from epilepsy.
    The majority responds that “much” of Pinholster’s new
    mitigating evidence “is of questionable mitigating value.”
    Ante, at 29. By presenting psychiatric testimony, it con
    tends, “Pinholster would have opened the door to rebuttal
    by a state expert.” 
    Ibid. But, because the
    California
    Supreme Court denied Pinholster’s petition on the plead
    ings, it had no reason to know what a state expert might
    have said. Moreover, given the record evidence, it is rea
    sonably probable that at least one juror would have cred
    ited his expert. In any event, even if a rebuttal expert
    testified that Pinholster suffered from antisocial personal
    ity disorder, this would hardly have come as a surprise to
    the jury. See ante, at 22 (describing Pinholster as a “psy
    chotic client whose performance at trial hardly endeared
    36                     CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    him to the jury”). It is for this reason that it was espe
    cially important for counsel to present the available evi
    dence to help the jury understand Pinholster. See Sears,
    561 U. S., at ___ (slip op., at 6–7).
    Had counsel conducted an adequate investigation, the
    judge and jury would have heard credible evidence show
    ing that Pinholster’s criminal acts and aggressive tenden
    cies were “attributable to a disadvantaged background, or
    to emotional and mental problems.” 
    Penry, 492 U.S., at 319
    (internal quotation marks omitted). They would have
    learned that Pinholster had the “ ‘kind of troubled history
    we have declared relevant to assessing a defendant’s
    moral culpability.’ ” Porter, 558 U. S., at ___ (slip op., at 12)
    (quoting 
    Wiggins, 539 U.S., at 535
    ). Applying Strickland,
    we have repeatedly found “a reasonable 
    probability,” 466 U.S., at 694
    , that the sentencer would have reached a
    different result had counsel presented similar evidence.
    See, e.g., Porter, 558 U. S., at ___ (slip op., at 12–13) (evi
    dence of the defendant’s childhood history of physical
    abuse, brain abnormality, limited schooling, and heroic
    military service); 
    Rompilla, 545 U.S., at 392
    (evidence of
    severe abuse and neglect as a child, as well as brain
    damage); 
    Wiggins, 539 U.S., at 535
    (evidence of the de
    fendant’s “severe privation and abuse” as a child, home
    lessness, and “diminished mental capacities”); Terry
    
    Williams, 529 U.S., at 398
    (evidence of childhood
    mistreatment and neglect, head injuries, possible organic
    mental impairments, and borderline mental retardation).
    The majority does not dispute the similarity between
    this case and the cited cases. However, it criticizes the
    Court of Appeals for relying on Rompilla and Terry Wil
    liams on the ground that we reviewed the prejudice ques
    tion de novo in those cases. See ante, at 31. I do not read
    Terry Williams to review the prejudice question de novo.27
    ——————
    27 Terry   Williams held that the state court’s decision was “unreason
    Cite as: 563 U. S. ____ (2011)                    37
    SOTOMAYOR, J., dissenting
    More fundamentally, however, I cannot agree with the
    premise that “[t]hose cases . . . offer no guidance with
    respect to whether a state court has unreasonably deter
    mined that prejudice is lacking.” Ante, at 31 (emphasis
    deleted). In each of these cases, we did not purport to
    create new law; we simply applied the same clearly estab
    lished precedent, Strickland, to a different set of facts.
    Because these cases illuminate the kinds of mitigation
    evidence that suffice to establish prejudice under Strick
    land, they provide useful, but not dispositive, guidance for
    courts to consider when determining whether a state court
    has unreasonably applied Strickland.
    In many cases, a state court presented with additional
    mitigation evidence will reasonably conclude that there is
    no “reasonable probability that, but for counsel’s unprofes
    sional errors, the result of the proceeding would have been
    different.” 
    Strickland, 466 U.S., at 694
    . This is not such
    a case. Admittedly, Pinholster unjustifiably stabbed and
    killed two people, and his history of violent outbursts and
    burglaries surely did not endear him to the jury. But the
    homicides did not appear premeditated. And the State’s
    aggravation case was no stronger than in Rompilla and
    Terry Williams. 
    See 545 U.S., at 378
    , 383 (the defendant
    committed murder by torture and had a significant history
    of violent felonies, including a 
    rape); 529 U.S., at 418
    (Rehnquist, C. J., concurring in part and dissenting in
    part) (the defendant had a lifetime of crime, and after the
    murder he “savagely beat an elderly woman,” set a home
    on fire, and stabbed a man (internal quotation marks
    omitted)). Even on the trial record, it took the jury two
    days to decide on a penalty. The contrast between the “not
    ——————
    able in at least two respects”: (1) It applied the wrong legal standard,
    
    see 529 U.S., at 397
    , and (2) it “failed to accord appropriate weight to
    the body of mitigation evidence available to trial counsel,” 
    id., at 398.
    We did not purport to conduct de novo review.
    38                CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    persuasive” mitigation case put on by Pinholster’s counsel,
    54 Tr. 7514, and the substantial mitigation evidence at
    their fingertips was stark. Given these considerations, it
    is not a foregone conclusion, as the majority deems it, that
    a juror familiar with his troubled background and psychi
    atric issues would have reached the same conclusion
    regarding Pinholster’s culpability. Fairminded jurists
    could not doubt that, on the record before the California
    Supreme Court, “there [was] a reasonable probability that
    at least one juror would have struck a different balance.”
    
    Wiggins, 539 U.S., at 537
    .
    III
    The state-court record on its own was more than ade
    quate to support the Court of Appeals’ conclusion that the
    California Supreme Court could not reasonably have
    rejected Pinholster’s Strickland claim. The additional
    evidence presented in the federal evidentiary hearing only
    confirms that conclusion.
    A
    At the hearing, Pinholster offered many of the same
    documents that were before the state habeas court. He
    also offered his trial attorneys’ billing records, which were
    before the state habeas court as part of the trial record. Of
    the seven lay witnesses who testified at the hearing, six
    had previously executed declarations in support of Pinhol
    ster’s state-court petition. (The seventh, Pinholster’s
    uncle, provided testimony cumulative of other testimony.)
    Two experts testified on Pinholster’s behalf; neither had
    presented declarations to the state habeas court. The first
    was Dr. Donald Olson, assistant professor of neurology
    and neurological sciences and director of the Pediatric
    Epilepsy Program at Stanford University Medical Center.
    It appears that Pinholster retained Dr. Olson to rebut the
    testimony of the expert disclosed by the State in the fed
    Cite as: 563 U. S. ____ (2011)          39
    SOTOMAYOR, J., dissenting
    eral proceeding. See Decl. of Michael D. Abzug in Support
    of Stipulated Ex Parte Application to Continue Eviden
    tiary Hearing and Discovery Cut-Off and to Substitute
    Counsel in Pinholster v. Calderon, No. CV 95–6240–GLT
    (CD Cal.), p. 2. Relying in part on Pinholster’s abnormal
    EEG, Dr. Olson opined that Pinholster’s childhood acci
    dents “likely result[ed] in brain injury” and that these
    injuries “conferred a risk of epilepsy.” Record ER–699 to
    ER–700. He concluded that it was reasonably probable
    that Pinholster had suffered from partial epilepsy since at
    least 1968 and had suffered from brain injury since at
    least 1964. 
    Id., at ER–
    701.
    Pinholster’s second expert was Dr. Sophia Vinogradov,
    associate professor of psychiatry at the University of
    California, San Francisco. Dr. Vinogradov’s testimony
    was based on essentially the same facts as Dr. Woods’ and
    Dr. Stalberg’s state-court declarations. She highlighted
    Pinholster’s childhood head traumas, history of epilepsy,
    abusive and neglected upbringing, history of substance
    abuse, and bizarre behavior on the night of the homicides.
    She opined that his aggressive behavior resulted from
    childhood head traumas:
    “All data indicates that there were severe effects of
    the two serious head injuries sustained at age 2 and
    age 3, with evidence for behavioral changes related to
    dysfunction of frontal cortex: severe attentional and
    learning problems in childhood, hyperactivity, aggres
    sivity, impulsivity, social-emotional impairment, sei
    zure disorder, and explosive dyscontrol.” 
    Id., at ER–
        731.
    She also opined that, right before the homicides, Pinhol
    ster was in an “apparently hallucinatory state [that] was
    likely the result of his intoxication with multiple sub
    stances.” 
    Id., at ER–
    707
    The State presented two experts: Dr. Stalberg, the
    40                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    psychiatrist who had examined Pinholster in the middle of
    trial,28 and Dr. David Rudnick. Although Dr. Stalberg
    maintained that Pinholster suffered from antisocial per
    sonality disorder, which was his original diagnosis in the
    middle of trial, he again emphasized that there was “vo
    luminous” and “compelling” mitigation evidence that had
    not previously been made available to him or presented to
    the jury. 
    Id., at ER–
    926, ER–953. He stated that conver
    sations with Pinholster’s family revealed that he and his
    siblings were “raised like animals, wild animals,” 
    id., at ER–948,
    and he opined that Pinholster’s upbringing was a
    risk factor for antisocial personality disorder. See 
    ibid. (Pinholster’s upbringing “would
    speak volumes, looking at
    it from a mitigation point of view”). And he agreed that
    the mitigation evidence presented at trial was “profoundly
    misleading.” 
    Id., at ER–
    966. Dr. Rudnick testified that
    Pinholster suffered from antisocial personality disorder.
    The State also introduced into evidence the 1978 proba
    tion report that Pinholster’s counsel had in their posses
    sion at the time of his trial. The report demonstrated that
    counsel were aware that Pinholster was in classes for
    educationally handicapped children, that he was commit
    ted to a state hospital for emotionally handicapped chil
    dren, and that he suffered two “severe head injuries.” 
    Id., at SER–243.
                                 B
    Much of the evidence presented at the federal hearing
    ——————
    28 Before the hearing, Dr. Stalberg had opined that Pinholster was
    “substantially impaired by a bipolar mood disorder operating synergis
    tically with intoxication and a seizure disorder at the time the crime
    was committed.” Record ER–587. At a prehearing deposition, however,
    Dr. Stalberg revised his opinion and stated that he continued to believe
    that Pinholster suffered from psychopathic personality traits. After the
    deposition, Pinholster elected to proceed with a different expert, pre
    sumably in light of Dr. Stalberg’s unexpected change in position. The
    State then retained Dr. Stalberg as its own expert.
    Cite as: 563 U. S. ____ (2011)                    41
    SOTOMAYOR, J., dissenting
    was duplicative of the evidence submitted to the California
    Supreme Court. The additional evidence presented at the
    hearing only confirmed that the California Supreme Court
    could not reasonably have rejected Pinholster’s claim.29
    For example, the probation report presented by the
    State confirmed that counsel had in their possession in
    formation that would have led any reasonable attorney “to
    investigate further.” 
    Wiggins, 539 U.S., at 527
    . Counsel
    nevertheless took no action to investigate these leads.
    Pinholster’s experts opined that his childhood head
    traumas likely resulted in brain injury and conferred a
    risk of epilepsy. Although the State presented testimony
    that Pinholster had antisocial personality disorder, it was
    not clear error for the District Court to conclude that
    jurors could have credited Pinholster’s experts. Even the
    ——————
    29 The  State argues that the District Court was not entitled to rely on
    the evidence adduced at the hearing because Pinholster was not dili
    gent in developing his claims in state court and the hearing was there
    fore barred by 
    28 U.S. C
    . §2254(e)(2). This argument is somewhat
    imprecise. Pinholster’s allegations in his amended federal petition
    were “identical” to the allegations he presented to the California
    Supreme Court, ante, at 6, and he diligently requested a hearing in
    state court. The State presumably means to argue that Pinholster’s
    new expert testimony changed “the factual basis” of his claim such that,
    by the time of the evidentiary hearing, he no longer satisfied
    §2254(e)(2). However, at oral argument, the State suggested that
    Pinholster was presenting an altogether new claim in the federal court.
    See Tr. of Oral Arg. 18. If that is the case, §2254(d)(1) does not apply at
    all, and the State should be arguing lack of exhaustion or procedural
    default. I do not understand Pinholster to have presented a new claim
    to the District Court.
    In any event, Pinholster satisfied §2254(e)(2) in this case. He made
    “a reasonable attempt, in light of the information available at the time,
    to investigate and pursue claims in state court.” Michael 
    Williams, 529 U.S., at 435
    . His experts relied on the very same facts and evidence. I
    cannot read §2254(e)(2) to impose a strict requirement that petitioners
    must use the same experts they presented to the state court. This rule
    would result in numerous practical problems, for example in the case of
    the unanticipated death of an expert.
    42                    CULLEN v. PINHOLSTER
    SOTOMAYOR, J., dissenting
    State’s own expert, Dr. Stalberg, testified to the “volumi
    nous” mitigation evidence in Pinholster’s case. Record ER–
    926.
    In sum, the evidence confirmed what was already ap
    parent from the state-court record: Pinholster’s counsel
    failed to conduct an adequate mitigation investigation,
    and there was a reasonable probability that at least one
    juror confronted with the “voluminous” mitigating evi
    dence counsel should have discovered would have voted to
    spare Pinholster’s life. 
    Ibid. Accordingly, whether on
    the
    basis of the state- or federal-court record, the courts below
    correctly concluded that Pinholster had shown that the
    California Supreme Court’s decision reflected an unrea
    sonable application of Strickland.30
    *     *     *
    I cannot agree with either aspect of the Court’s ruling. I
    fear the consequences of the Court’s novel interpretation
    of §2254(d)(1) for diligent state habeas petitioners with
    compelling evidence supporting their claims who were
    unable, through no fault of their own, to present that
    evidence to the state court that adjudicated their claims.
    And the Court’s conclusion that the California Supreme
    Court reasonably denied Pinholster’s ineffective
    assistance-of-counsel claim overlooks counsel’s failure to
    investigate obvious avenues of mitigation and the contrast
    between the woefully inadequate mitigation case they
    presented and the evidence they should and would have
    discovered. I respectfully dissent.
    ——————
    30 The State’s challenge in this Court is limited to the questions
    whether the Federal District Court was entitled to consider the addi
    tional evidence in the §2254(d)(1) analysis and whether Pinholster
    satisfied §2254(d)(1) on the basis of the state-court record. It has not
    challenged the District Court’s ultimate conclusion that Pinholster had
    proved that he was “in custody in violation of the Constitution or laws
    or treaties of the United States.” §2254(a).
    

Document Info

Docket Number: 09-1088

Judges: Thomas, Roberts, Scalia, Kennedy, Alito, Breyer, Ginsburg, Kagan, Sotomayor

Filed Date: 4/4/2011

Precedential Status: Precedential

Modified Date: 11/15/2024

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