United States v. Conigliaro ( 2021 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 19-1644
    UNITED STATES OF AMERICA,
    Appellant,
    v.
    SHARON P. CARTER,
    Defendant, Appellee.
    No. 19-1645
    UNITED STATES OF AMERICA,
    Appellant,
    v.
    GREGORY CONIGLIARO,
    Defendant, Appellee.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Richard G. Stearns, U.S. District Judge]
    Before
    Lynch, Lipez, and Barron,
    Circuit Judges.
    Ross B. Goldman, Criminal Division, Appellate Section, United
    States Department of Justice, with whom Andrew E. Lelling, United
    States Attorney, Amanda P.M. Strachan, Assistant United States
    Attorney, Donald C. Lockhart, Assistant United States Attorney,
    Brian A. Benczkowski, Assistant Attorney General, and John P.
    Cronan, Principal Deputy Assistant Attorney General, were on
    brief, for appellant.
    Michael J. Pineault, with whom Clements & Pineault, LLP was
    on brief, for appellee Sharon P. Carter.
    Daniel M. Rabinovitz, with whom Shawn Lu and Murphy & King,
    P.C. were on brief, for appellee Gregory Conigliaro.
    September 27, 2021
    BARRON, Circuit Judge.         These consolidated appeals are
    the latest to reach us in connection with the federal criminal
    investigation that ensued after patients across the country became
    seriously ill or died in the fall of 2012 after having been
    injected with a contaminated medication traced to the New England
    Compounding Center ("NECC").       NECC was a licensed pharmacy based
    in   Framingham,    Massachusetts.       It     combined   drugs   with   other
    substances to create specialized medications -- a practice known
    as compounding.
    Unlike in the other appeals that we have considered in
    connection with the federal criminal investigation into NECC's
    operations, see United States v. Stepanets, 
    989 F.3d 88
     (1st Cir.
    2021); United States v. Cadden, 
    965 F.3d 1
     (1st Cir. 2020); United
    States v. Chin (Chin I), 
    965 F.3d 41
     (1st Cir. 2020), the appellant
    here is the government.      It challenges the post-verdict judgments
    of acquittal that the District Court entered in favor of Sharon
    Carter and Gregory Conigliaro, who were, respectively, NECC's
    former Director of Operations and NECC's former Vice President,
    Secretary, Treasurer, and General Manager.
    Carter    and   Conigliaro    were     named    along   with   twelve
    others in a 131-count indictment that a grand jury in the District
    of Massachusetts handed up in December 2014.               Neither Carter nor
    Conigliaro was charged with playing any direct role in the physical
    compounding of the contaminated medication that was linked to
    - 3 -
    patient illnesses and deaths.        Instead, each was charged only with
    counts that pertained to their roles in connection with other
    aspects of NECC's operations.         Among those charges was one that
    alleged that each had, while working at NECC, conspired to defraud
    the United States in violation of 
    18 U.S.C. § 371
     "by interfering
    with and obstructing" the ability of the United States Food and
    Drug Administration ("FDA") to oversee the practices of NECC.
    A   jury   found   both   Carter    and   Conigliaro   guilty   of
    violating § 371 following their joint trial. Carter and Conigliaro
    then each moved pursuant to Federal Rule of Criminal Procedure 29
    for a post-verdict judgment of acquittal on the § 371 count for
    which each had been found guilty.1         The District Court granted the
    motions.     The government now appeals the resulting judgments of
    acquittal.     We reverse.
    I.
    We describe the facts concerning the defendants' alleged
    conduct as they are pertinent to our analysis.            To set the stage
    for that analysis, though, it is useful first to recount both the
    involved procedural history that has brought us to this point and
    some of the basic legal background that bears on the issues present
    in these appeals.
    1   Before and during the trial, both defendants had
    already filed multiple motions challenging the § 371 conspiracy
    charge against them, each of which the District Court had denied.
    - 4 -
    A.
    The     indictment       charged     that    between     1998   and
    approximately October 2012, Carter, Conigliaro,2 and three of their
    codefendants who also were employees of NECC at the time -- Barry
    Cadden, Robert Ronzio, and Alla Stepanets3 -- had engaged in a
    conspiracy to violate 
    18 U.S.C. § 371
    .           That statute criminalizes
    the "conspir[acy]" by "two or more persons . . . to commit any
    offense against the United States, or to defraud the United States,
    or any agency thereof in any manner or for any purpose" as long as
    "one or more of such persons do any act to effect the object of
    the conspiracy."        
    Id.
       We have interpreted the "defraud" clause of
    § 371 to encompass conspiracies that seek to "interfere with
    government functions."         United States v. Goldberg, 
    105 F.3d 770
    ,
    773 (1st Cir. 1997); see also United States v. Morosco, 
    822 F.3d 1
    ,   6   (1st    Cir.    2016)    (explaining    that   § 371     criminalizes
    conspiracies to "obstruct[] the operation of any government agency
    by any 'deceit, craft or trickery, or at least by means that are
    2   Conigliaro began working at NECC in 2004 and was
    charged with joining the conspiracy then.
    3   Ronzio was NECC's National Sales Manager. He ended
    up entering into a cooperation agreement with the government and
    pleading guilty to the § 371 conspiracy count that he faced.
    Stepanets was a pharmacist who worked in NECC's packing area. See
    Stepanets, 989 F.3d at 96.       Cadden was NECC's founder and
    president. Stepanets and Cadden were both acquitted of the § 371
    conspiracy count by their respective juries but found guilty of
    other counts that each faced. See id. at 93; Cadden, 965 F.3d at
    8.
    - 5 -
    dishonest'" (quoting Hammerschmidt v. United States, 
    265 U.S. 182
    ,
    188 (1924))); United States v. Barker Steel Co., 
    985 F.2d 1123
    ,
    1128 (1st Cir. 1993) ("The objective of the agreement is unlawful
    if it is 'for the purpose of impairing, obstructing or defeating
    the   lawful    function       of   any   department     of    [g]overnment.'"
    (quoting United States v. Hurley, 
    957 F.2d 1
    , 4 (1st Cir. 1992))).
    In     detailing      the   alleged     §   371     conspiracy,   the
    indictment     charged   the    defendants    with    "interfering   with   and
    obstructing the lawful governmental functions of the FDA."                   In
    support of this contention, the indictment alleged that Carter,
    Conigliaro, and their co-conspirators had agreed to enter into a
    conspiracy defraud the FDA by "purport[ing] to be operating NECC
    as a state-regulated pharmacy, dispensing drugs pursuant to valid,
    patient-specific prescriptions as required by Massachusetts law,
    rather than as a drug manufacturer distributing drugs in bulk to
    customers without prescriptions and thereby subject to heightened
    regulatory oversight by the FDA" pursuant to its authority under
    the Food, Drug, and Cosmetic Act ("FDCA").
    Passed in 1938, the FDCA gave the FDA authority to
    regulate "any new drug."        Act of June 25, 1938, Pub. L. 75-717, 
    52 Stat. 1040
     (codified at 
    21 U.S.C. § 301
     et seq.); FDCA § 505(a)
    (codified at 
    21 U.S.C. § 355
    (a)).           During the time of the alleged
    conspiracy, the FDCA defined "new drug" as "[a]ny drug . . . not
    generally recognized . . . as safe and effective for use under the
    - 6 -
    conditions prescribed, recommended, or suggested in the labeling
    thereof."     
    21 U.S.C. § 321
    (p).      It further provided that "[n]o
    person shall introduce or deliver for introduction into interstate
    commerce any new drug, unless an approval of an application filed
    [with the FDA] is effective with respect to such drug."                  
    Id.
    § 355(a).     In addition, it provided that any "new drug" must be
    made in accordance with "current good manufacturing practice"
    ("GMP") --    a   set   of   regulations    that   the    FDA   subsequently
    promulgated to impose strict safety controls on manufacturers of
    new drugs.    Id. § 351(a)(2)(B); see also 
    21 U.S.C. § 371
    (a) ("The
    authority to promulgate regulations for the efficient enforcement
    of this chapter, except as otherwise provided in this section, is
    vested in the [Commissioner of the FDA].").
    Compounded drugs would appear to fit within the FDCA's
    definition of a "new drug."       After all, "[d]rug compounding is a
    process [that] combines, mixes, or alters ingredients to create a
    medication tailored to the needs of an individual patient . . .
    that [is typically] not commercially available."                Thompson v.
    Western     States   Med.    Cntr.,   
    535 U.S. 357
    ,    360-61    (2002).
    Nevertheless, for the first fifty years after the FDCA's enactment,
    "the FDA generally left regulation of compounding to the States."
    
    Id. at 362
    .
    "[E]ventually," however, the FDA "became concerned . . .
    that some pharmacists were manufacturing and selling drugs under
    - 7 -
    the guise of compounding, thereby avoiding the FDCA's new drug
    requirements."    
    Id.
        It then began to take a more proactive role
    in the oversight of compounders -- at least those compounders that
    the FDA concluded behaved as manufacturers.           
    Id. at 362-63
    .
    The indictment here centered on the role that the alleged
    conspirators    supposedly    played    in     defrauding   the   FDA.   In
    particular, the indictment claimed that the defendants conspired
    to prevent the FDA from being able to determine whether NECC was
    a manufacturer or a pharmacy by intentionally misrepresenting the
    nature of the company's operations.            The indictment explained in
    that respect that, as a "manufacturer," NECC would have been
    subject to heightened regulatory oversight by the FDA pursuant to
    its authority under the FDCA, while, as a "pharmacy," NECC would
    have been     primarily regulated by state pharmacy boards.              By
    conspiring to misrepresent to the FDA that NECC was operating only
    as a pharmacy and not as a manufacturer, the indictment alleged,
    the defendants conspired to interfere with the FDA's oversight
    function with respect to NECC and thereby conspired to defraud the
    United States in violation of § 371, given that such regulatory
    oversight by FDA is a "government function."
    The indictment also alleged how the defendants carried
    out   the   alleged     conspiracy     to    misrepresent   the   company's
    operations.    Specifically, it alleged that the defendants agreed
    to participate in a conspiracy by which NECC would regularly
    - 8 -
    misrepresent to the FDA         that it was shipping its compounded
    medications    to   customers    (which   were   hospitals      and   medical
    facilities rather than patients in their own right) pursuant to
    valid,   patient-specific       prescriptions.     Yet,    in     fact,     the
    indictment alleged, the company was processing the customers'
    orders   for   those   medications    without    there    being    any     such
    prescriptions.      It then described three methods by which NECC
    allegedly disguised the fact that it was shipping compounded drugs
    in this manner before turning to the roles that that conspirators
    allegedly each played in carrying out the deception.
    One such alleged method involved "backfilling."                Here,
    NECC allegedly allowed customers to place their first order for
    medications without supplying any prescriptions or patient names.
    NECC then collected from customers the roster of patient names to
    whom these customers ended up prescribing and administering the
    medications on site.     Thereafter, NECC allegedly attached such a
    roster either retrospectively to that first order or used it to
    process a subsequent order by the same customer -- thereby making
    it look as if NECC had filled the orders only after it had received
    valid, patient-specific prescriptions from a customer.
    A second alleged method involved NECC's processing of
    orders using prescriptions for fictitious patients.               Sometimes,
    according to the indictment, NECC processed orders using the names
    of celebrities or fantasy characters that customers had supplied,
    - 9 -
    such as "Michael Jackson" and "Wonder Woman."           At other times, the
    indictment alleged, NECC used the names of customers' staff members
    or those of previous patients that customers had supplied.                 At
    still other times, NECC allegedly fabricated the prescriptions
    rather than relying on its customers to do so.                 And, finally,
    according to the indictment, NECC sometimes used a given patient
    name for multiple medications and for multiple units of the same
    medication in a single order, applying a ratio that would look
    plausible to regulators rather than filling a valid multidose
    prescription.
    Pursuant to yet a third alleged method of shipping the
    drugs without a valid patient-specific prescription, according to
    the indictment, NECC processed some customers' orders using just
    the names of those institutional customers.        NECC allegedly did so
    even though the customer was a hospital or medical facility that
    would then itself later dispense the drug to a patient and thus
    was not itself a patient for whom a prescription had been issued.
    Under this method, then, the drug was shipped by NECC to its
    customers without there being any patient identified who had been
    issued a prescription for it.
    The indictment alleged that the defendants helped NECC
    deploy   these   methods    despite    knowing   that    the    company   was
    representing to the FDA that it was a compounding pharmacy that
    dispensed    drugs   only   pursuant     to    valid    prescriptions     for
    - 10 -
    individual patients and therefore was not subject to the FDA's GMP
    regulations that govern drug manufacturers.               In setting forth this
    allegation,       the    indictment      highlighted       several       statements
    allegedly made by the defendants that purportedly showed their
    awareness of both the alleged scheme and the regulatory background
    in which NECC's scheme was taking place.
    The    indictment      included,    for      example,      Conigliaro's
    alleged statements to the FDA that NECC was a "compounding-only
    pharmacy, not a manufacturer" and thus "not subject to GMP."                   Also
    cited in the indictment was an email Carter shared with NECC's
    order-processing        staff,   instructing      them    that   "the    MAX   total
    number of units . . . per patient must make sense," that "all names
    must resemble 'real' names," and not to use "obviously fake names
    [] (Mikey Mouse)"        because she "must be able to logically explain
    to a regulator why [NECC] processed x# of units per patient"
    (emphasis added).
    B.
    The § 371 case against Carter and Conigliaro eventually
    went   to   trial.       They    were   tried   along     with   the    four   other
    defendants who were also charged with committing the § 371 offense.
    At     trial,      the    government       presented      documentary
    evidence alongside testimony from twenty-nine witnesses, many of
    whom were from the FDA or were former NECC employees. We summarize
    the record presented at trial as it is relevant to the motions for
    - 11 -
    judgments of acquittal by Carter and Conigliaro that are before us
    in these appeals.
    Many of the documents that the government introduced at
    trial were the product of two search warrants executed against
    NECC and its sales-affiliate, Medical Sales Management.                     The
    evidence introduced included order forms that NECC had filled for
    its customers under various "patient" names, such as "Ted Bundy"
    and "Barney Fife."    The evidence also included an employee manual
    that Carter signed that detailed the "FDA Modernization Act of
    1997-Pharmacy Compounding Provisions" and "[h]ow to handle an FDA
    inspection" (as well as many of the emails described in the
    indictment).
    In addition, the government introduced testimony from
    several   former     employees     who     testified     to   Carter's      and
    Conigliaro's understanding of the importance to NECC of the company
    being considered a pharmacy and not a manufacturer in the eyes of
    regulators.    Ken Boneau, for example, one such former sales
    representative,    testified     that    during   his   training   as   a   new
    employee, it was explained to him that "if the FDA regulated
    [NECC], there would be a lot of limitations" and that it was
    "important that the FDA not regulate NECC."              Beth Reynolds, an
    NECC licensing coordinator, further testified to conversations
    that she had with Conigliaro and others about NECC needing to
    comply with state laws requiring the compounder to meet state
    - 12 -
    manufacturing guidance.     As to Carter, the government introduced
    testimony   from   former   employees,   including   Boneau   and      Mario
    Giamei, Jr., about emails that they had received from Carter about
    what to do in the event that NECC's customers did not provide
    patient names with orders.         And, finally, FDA Agent        Michael
    Mangiacotti testified that during the search of NECC's offices, he
    found signs posted in the sales staff's cubicles with instructions
    from   Carter   warning   NECC   employees   about   the   need   to    give
    "regulators" the impression that NECC was compounding drugs after
    receipt of real patient names.
    C.
    The jury was instructed with respect to the § 371 counts
    that Carter, Conigliaro, and their co-defendants had been "charged
    with conspiring to defraud the FDA by impeding its ability to
    perform its regulatory function by misleading it into believing
    that NECC was a Massachusetts regulated compounding pharmacy and
    not operating as a drug manufacturer subject to FDA regulation and
    oversight."     The jury was further instructed that "[a] conspiracy
    is an agreement between or among two or more persons to accomplish
    an unlawful purpose," and that, "[t]o prove a defendant guilty of
    a crime of conspiracy, the government must prove three essential
    elements beyond a reasonable doubt":     (1) "that the conspiratorial
    agreement alleged in the indictment and not some other agreement
    or agreements existed at or about the time specified"; (2) "that
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    a defendant knowingly and willfully joined in that agreement with
    the purpose of seeing it succeed in accomplishing its unlawful
    goals"; and (3) "that one of the conspirators committed an overt
    act, that is, took an affirmative step to further the purposes of
    the conspiracy at some time during its existence."
    The jury acquitted all the defendants of the § 371 counts
    at issue other than Carter and Conigliaro, who were each found
    guilty.   Carter and Conigliaro each then then filed a motion for
    a post-verdict judgment of acquittal supported by a memorandum.
    The memoranda advanced three arguments for entering the judgments
    of acquittal.
    First,   the   memoranda     argued       that   it    was     legally
    impossible for either Carter or Conigliaro to have been part of
    the alleged conspiracy due to what the record assertedly showed
    about   the    FDA's     authority,     during    the   life   of    the     alleged
    conspiracy, to conduct the regulatory oversight of NECC with which
    they were alleged to have interfered.                   Second, the memoranda
    contended that Carter and Conigliaro could be convicted on the
    counts of which the jury had found them guilty only by adopting an
    overbroad and vague construction of § 371's "defraud" clause that
    would deprive them of fair notice and thus violate their right to
    due   process    under    the   Fifth    Amendment      of   the    United    States
    - 14 -
    Constitution.4   Third, and finally, the memoranda contended that
    the evidence presented at trial was insufficient to support their
    convictions under § 371, even assuming the defenses to those
    convictions that we have just described failed.
    At the same time that Carter and Conigliaro moved for
    judgments of acquittal on the § 371 counts under Rule 29, they
    also moved in the alternative pursuant to Federal Rule of Criminal
    Procedure 33 for a new trial on those counts.     Conigliaro argued
    in support of his motion for a new trial that the District Court
    had failed to sever his trial from that of four other defendants
    named in the indictment with whom he and Carter were jointly tried
    and that the District Court had also committed several prejudicial
    evidentiary errors.   Carter contended in her new trial motion that
    the jury's verdict finding her guilty of violating § 371 was
    contrary to the substantial weight of the evidence and that her
    trial, too, was tainted in various ways by prejudicial evidence.
    D.
    The District Court held a hearing on the motions for
    entering a post-verdict judgment of acquittal on the one § 371
    4    Insofar as the defendants meant to argue not only
    that the construction of § 371's "defraud" clause on which their
    convictions are premised deprived them of fair notice in violation
    of the Due Process Clause, but also -- separately -- that § 371 is
    void for vagueness in violation of the Due Process Clause, the
    District Court rejected that argument and neither defendant renews
    it on appeal.
    - 15 -
    count that Carter and Conigliaro each faced.    The District Court
    granted those motions in a written decision on June 7, 2019.     It
    thus did not rule on the then-still-pending Rule 33 motions for a
    new trial on those same counts that were also brought by these
    codefendants.    The District Court determined that its ruling in
    their favor on the motions to enter judgments of acquittal on their
    § 371 counts rendered their new trial motions moot.
    The District Court issued a lengthy opinion setting
    forth its reasoning for ruling as it did on the Rule 29 motions.
    See United States v. Conigliaro, 
    384 F. Supp. 3d 145
     (D. Mass.
    2019). That opinion included a substantial discussion of the legal
    impossibility and due process defenses that Carter and Conigliaro
    advanced.    In granting the motions, the District Court did not
    reach the contention that, even if those defenses were unavailing,
    the Rule 29 motions still would have to be granted based on the
    independent contentions Carter and Conigliaro both made that the
    evidence was insufficient to support their conviction of the
    charges.
    Because the District Court's analysis of these defenses
    engages in a detailed manner with the state of regulatory play
    during the alleged conspiracy, it is useful to provide a relatively
    fulsome description of some of the key regulatory milestones before
    describing the District Court's analysis further.   After providing
    this historical background, we then turn to a review of the
    - 16 -
    District Court's reasoning in its opinion, starting with its
    discussion of the defense of legal impossibility.
    1.
    As we explained above, the FDCA authorizes the FDA to
    regulate "any new drug," FDCA § 505(a) (codified at 
    21 U.S.C. § 355
    (a)), which was defined in the relevant period as "[a]ny
    drug . . . not generally recognized . . . as safe and effective
    for use under the conditions prescribed, recommended, or suggested
    in the labeling thereof."   
    21 U.S.C. § 321
    (p).     And, as we also
    explained above, although compounded drugs would seem to fit within
    that definition, for the first fifty years after the FDCA's
    enactment, the FDA generally left regulation of compounding to
    state pharmacy boards.   Western States, 
    535 U.S. at 360-61
    .   Over
    time, however, as we have noted, the FDA grew concerned that some
    pharmacists were manufacturing and selling large quantities of
    drugs under the guise of compounding in an effort to evade the
    FDA's "new drug" requirements.   
    Id.
    The FDA responded to the concerns about compounding by
    issuing a Compliance Policy Guide in 1992.   FDA Compliance Policy
    Guide (CPG) Sec. 7132.16 (1992) (the "1992 CPG").      It explained
    "that while retail pharmacies . . . are exempted from certain
    requirements of the [FDCA], they are not the subject of any general
    exemption from the [FDCA's] new drug, adulteration, or misbranding
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    provisions."       Western States, 
    535 U.S. at 360-61
     (quoting the 1992
    CPG).
    The Guide announced that the FDA "may, in the exercise
    of    its    enforcement    discretion,     initiate       federal    enforcement
    actions . . . when the scope and nature of a pharmacy's activities
    raise[]      the   kinds    of   concerns     normally     associated     with   a
    manufacturer and . . . result[] in significant violations of the
    new drug, adulteration, or misbranding provisions of the Act."
    
    Id.
     (quoting the 1992 CPG).           But, the Guide also announced that
    the    FDA    otherwise    would   continue     to   exercise        discretionary
    abstention from the policing of prescription-based compounding
    pharmacies as well as pharmacies that compounded drugs without
    prescriptions in "very limited quantities" for buyers with whom
    they could demonstrate an "established professional practitioner-
    patient-pharmacy relationship." 
    Id. at 363
     (quoting the 1992 CPG).
    Congress     codified   parts    of    the    FDA's     1992   Guide
    concerning compounding a number of years later in the Food and
    Drug Administration Modernization Act of 1997 ("FDAMA").                  See Pub.
    L. 105-115, 
    111 Stat. 2296
    , § 127 (codified at 21 U.S.C. § 503A
    (1997)).      In particular, as the District Court noted:
    [The FDAMA] created a safe harbor for
    compounded drugs, exempting them from the
    FDCA's "new drug" requirements provided that
    certain criteria were met, most pertinently,
    that they be compounded in response to a valid
    prescription   or   only   in   limited   non-
    prescription quantities where an established
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    relationship      existed between    the specific
    pharmacist,        patient,   and      prescribing
    physician.
    Conigliaro, 384 F. Supp. 3d at 160 (citing 21 U.S.C. § 353a(a)).
    The next major development of note occurred in 2002.
    That was when the Supreme Court of the United States struck down
    adjacent provisions of the FDAMA in Thompson v. Western States on
    the ground that they violated the First Amendment.            See Western
    States, 
    535 U.S. at 377
    .          The Court did not reach the question of
    severability in that decision.         See 
    id. at 360
    .   But, thereafter,
    a circuit split ensued as to what, if anything, remained of the
    FDAMA and its provisions regulating compounders.
    The Ninth Circuit held that the FDAMA as a whole was
    invalid.    See Western States Med. Ctr. v. Shalala, 
    238 F.3d 1090
    (9th Cir. 2001).         The Fifth Circuit held, in contrast, that the
    FDAMA    stripped   of    those    unconstitutional   provisions   remained
    viable after Western States.          See Med. Ctr. Pharmacy v. Mukasey,
    
    536 F.3d 383
     (5th Cir. 2008).         Our circuit did not weigh in on the
    issue.
    The FDA reacted to Western States in 2002 by issuing a
    new CPG.    See FDA Compliance Policy Guide Sec. 460.200 Pharmacy
    Compounding (2002) (the "2002 CPG").          The 2002 CPG sought to head
    off any uncertainty that might result from the Supreme Court's
    decision in Western States with respect to the FDA's continued
    - 19 -
    enforcement      approach           by,     as     the     District     Court        explained,
    "essentially reembrac[ing] the FDA's 1992 guidance."                                Conigliaro,
    384 F. Supp. at 160.
    The 2002 CPG reiterated that, for enforcement purposes,
    the FDA would continue to draw a line between, on the one hand,
    compounders that operated like traditional retail pharmacies in
    that   they    produced        and    sold        drugs    "upon    receipt        of    a   valid
    prescription      for     an    individually              identified     patient          from    a
    licensed practitioner," and, on the other hand, compounders that
    operated      like    manufacturers               in      that   they,     for          instance,
    "receive[d] and use[d] large quantities of bulk drug substances to
    manufacture      large    quantities              of   unapproved      drug        products      in
    advance of receiving a valid prescription for them."                                     The FDA
    assured compounders of the first kind, which operated as retail
    pharmacies, that it would abstain from enforcement actions, but
    warned     compounders         of     the        second     kind,     which        operated      as
    manufacturers,       that      it     would       "seriously        consider        enforcement
    action" against them.               The FDA, moreover, specified that one of
    the factors it would consider in determining whether a compounder
    fell into this latter category of manufacturers was whether it
    "compound[ed] . . .             drugs        in          anticipation         of        receiving
    prescriptions, except in very limited quantities in relation to
    the    amounts       of     drugs         compounded         after       receiving           valid
    - 20 -
    prescriptions." This 2002 CPG, while not legally binding, remained
    in effect through the end of the alleged conspiracy in 2012.
    2.
    Carter and Conigliaro drew on this regulatory history in
    making their legal impossibility and due process arguments to the
    District Court.       They claimed that, during the relevant period,
    there   was     "no   discernible      federal      law"   or   regulation    that
    "defin[ed] any clear distinction between a compounding pharmacy
    and a drug manufacturer."        As a result, the defendants argued, it
    was legally impossible to conspire to interfere with the FDA's
    "government functions"         overseeing compounders.            Moreover,    the
    defendants argued that, in light of this history, it would violate
    notions of fair warning embedded in the Due Process Clause of the
    Fifth Amendment to find them criminally liable under § 371.
    The   District   Court    began    its   opinion    assessing    the
    defendants' defenses with the defense of legal impossibility.                   It
    then took up their due process-based contentions.                   We describe
    each portion of the District Court's analysis in turn.
    a.
    A "pure legal impossibility" defense applies "when no
    statute   proscribe[s]     the   result      that    the   defendant   expected,
    desired, and intended to achieve."               United States v. Fernandez,
    
    722 F.3d 1
    , 31 (1st Cir. 2013) (citation omitted).                  "Pure legal
    impossibility is always a defense" -- including where, as here,
    - 21 -
    the defendants were charged and convicted of the inchoate crime of
    conspiracy.        
    Id.
    As    the    District       Court     explained,        however,      legal
    impossibility is distinct from factual impossibility.                              Factual
    impossibility "arises when an attempt is frustrated by a physical
    circumstance of which the actor is unaware."                     Conigliaro, 384 F.
    Supp. 3d at 153 (citing People v. Fiegelman, 
    33 Cal. App. 2d 100
    (1939)).      And, as the District Court also noted, "we long have
    held   that    factual         impossibility      is   not   a     defense    to . . .
    liability . . .          for   inchoate    offenses      such    as    conspiracy      or
    attempt."      
    Id.
     at 153 (citing United States v. Dixon, 
    449 F.3d 194
    , 202 (1st Cir. 2006)).
    Against      this    legal    backdrop,        the      District      Court
    explained that, in its view, "if the FDA, even if mistakenly,
    disavowed a legal right to regulate compounding pharmacies like
    NECC, and if the evidence at trial showed that the FDA abstained
    from regulating NECC as a result of its internal determination of
    its own jurisdiction, a legal impossibility defense would plainly
    be available." Id. at 158 (emphasis added).                      The District Court
    added that it did not mean "to fault the FDA" insofar as it wrongly
    disavowed     legal       authority    that    it      possessed,      as    the    court
    "recognize[d] . . . that the dividing line between pharmaceutical
    compounding and drug manufacturing had (prior to the NECC disaster)
    never been drawn with any clarity by Congress," which, "in turn,
    - 22 -
    created a regulatory lacuna in the borderland in which NECC
    progressively came to operate." Id.
    The District Court then noted that "another way to frame
    a legal impossibility defense" in this case would be to base it
    "on the proposition that the government failed to meet its burden
    of proof on a required element of the crime -- namely, that the
    'government    functions'      with   which   the    conspirators        sought    to
    interfere were in fact being exercised by the FDA."                     Id. at 159.
    It   explained    that   in    identifying    this       framing   of    the   legal
    impossibility defense it was "influenced by basic principles of
    lenity and due process," which "require that it be 'reasonably
    clear at the relevant time that the defendant's conduct was
    criminal.'"      Id. (quoting United States v. Lanier, 
    520 U.S. 259
    ,
    267 (1997)).
    The District Court at that point undertook an extensive
    analysis of the federal statutory, precedential, and regulatory
    regime that governed compounding pharmacies during the time of the
    alleged conspiracy -- reviewing much of the history discussed above
    as well as additional statements made by FDA officials.                           The
    District Court found that "the FDA itself" had "rejected" the
    position   that    it    had   the    authority     to    regulate      compounding
    pharmacies during those years.           Id. at 162.        The District Court
    also found that the FDA in that time period repeatedly failed "to
    - 23 -
    articulate    a     clear    line   between      compounding      and   drug
    manufacturing."     Id.
    According to the District Court, the FDA recognized over
    that span of time that its "authority over compounding [was]
    limited, unclear, and contested."         Id. at 165 (citing Testimony
    Before the House of Representatives Subcommittee on Oversight and
    Investigations, Committee on Energy and Commerce, Nov. 14, 2012).
    And, the District Court further noted, "the evidence [at trial]
    plainly show[ed] that during the life of the charged conspiracy,
    the FDA was not, and did not believe that it should be, in the
    business of regulating companies like NECC that were engaged in
    anticipatory pharmacy compounding."          Id. at 165.    "[T]he bottom
    line," the District Court then concluded, was that "during the
    critical   times,    these   defendants   (and    NECC)   could   not   have
    defrauded the FDA by interfering with the relevant regulatory
    functions because there were none to speak of."           Id.
    b.
    The District Court next considered the defendants' due
    process-based defenses.       The District Court had stated in the
    introductory section of its opinion that the entry of judgments of
    conviction of the defendants on the § 371 count that each faced
    would "violate[]" their "rights to fair notice and due process."
    Id. at 148.   In the course of its due process analysis, though,
    the District Court appeared to rely less on a conclusion based on
    - 24 -
    the Fifth Amendment's Due Process Clause than on the related
    concerns about "fair warning" rooted in the rule of lenity that it
    had invoked in connection with its second framing of the legal
    impossibility defense described above.
    In that regard, the District Court explained that a
    narrow construction of the "government functions" element of the
    § 371 offense might be appropriate based on such concerns.                     It
    then    stated    that   because   the     record   showed    that    the   FDA's
    regulatory authority was uncertain in this area and that the agency
    had not in fact exercised it, the "tie-breaking rule of lenity"
    applied to § 371.        See id. at 168.
    The    District     Court    elaborated    on   these    conclusions
    regarding due process and lenity as follows.              It explained that if
    the    defendants'    convictions       were   based   on   "the    hypothetical
    jurisdiction that the FDA might have asserted over 'new' drugs,
    based on a 1938 statute, standing alone -- and irrespective of the
    contrary positions since taken by the FDA itself -- . . . [they]
    raise[d] legitimate concerns of constitutional due process and
    fair notice."        Id. at 168.        The District Court then closed by
    emphasizing that "[b]ecause the FDA did not believe it had the
    statutory    authority     to   regulate . . .      new     forms   of   pharmacy
    compounders" like NECC, "people 'of common intelligence' in the
    industry were left to guess as to the FDA's future enforcement
    policies."       Id. at 167.    It also noted that "[p]revious judicial
    - 25 -
    decisions had not 'fairly disclosed' to the industry that the FDA
    was poised to insert itself as a hands-on overseer of compounding
    pharmacies; to the contrary, the few cases that had been decided
    mostly pointed in the opposite direction."         Id.   And, it finally
    noted that "even if the argument could be made that the FDA had
    never affirmatively and publicly renounced its residual authority
    to regulate compounders, the contradictory nature of the public
    pronouncements it did make on the subject would justify application
    of the tie-breaking rule of lenity."        Id.
    The District Court did not specify to what provision of
    law the "tie-breaking" rule of lenity that it invoked would apply.
    It appeared to be concluding, however, at least given its earlier
    statements, that the rule of lenity would apply to the "government
    functions" element of the § 371 offense at issue.
    In   consequence   of   the   narrow    construction   of   that
    element that it was thus required to adopt, the District Court
    appeared to conclude, a juror could not find beyond a reasonable
    doubt that the "government functions" with which the defendants
    had been charged with conspiring to interfere existed.           Here, it
    seemed to suggest that such a finding would be precluded by the
    lack of clarity in the record as to whether the FDA had the
    regulatory authority with which the defendants allegedly conspired
    to interfere in the years during which the conspiracy was alleged
    to have been ongoing.
    - 26 -
    Notably, though, the District Court did not appear to be
    concluding at any point in its analysis that the rule of lenity
    would apply to the FDCA itself, as opposed to the "government
    functions" element impliedly incorporated into § 371 in a case
    involving an alleged fraud of the sort at issue here.     Thus, the
    District Court did not appear to be holding that, due to the rule
    of lenity, the term "new drug"    in 
    21 U.S.C. § 321
    (p) would have
    to be construed narrowly during the life of the conspiracy to
    exclude either the practice of compounding altogether or, at the
    least, that practice in the form in which NECC was alleged to have
    engaged in it.     In other words, the District Court at no point
    held that the FDA would have been legally barred during the
    relevant period of time from treating NECC as a "manufacturer"
    under that statute, even for purposes of exercising its civil
    regulatory enforcement powers and even if the agency had chosen to
    assert such authority only after having provided due notice to
    regulatory parties of its intention to do so.
    E.
    The District Court entered the post-verdict judgments of
    acquittal four days after issuing its written decision granting
    the motions for such judgments.       The United States then timely
    appealed.
    - 27 -
    II.
    We begin our analysis with the government's contention
    that neither a legal impossibility defense (in either of the
    formulations articulated by the District Court that we have just
    described) nor a due process defense (including the variant of it
    that appears to be premised on the rule of lenity that, as we have
    just explained, the District Court seems to have embraced rather
    than a variant premised on the Fifth Amendment itself) justifies
    an affirmance of the District Court's post-verdict judgments of
    acquittal in this case.        We review a District Court's post-verdict
    judgment of acquittal de novo.          See United States v. Mubayyid, 
    658 F.3d 35
    , 47 (1st Cir. 2011).
    In    undertaking    this    review,   we   consider   preserved
    arguments putting forward the defense of legal impossibility de
    novo.   See Fernandez, 722 F.3d at 8.         But, insofar as the District
    Court's judgments of acquittal rested on factual determinations,
    we "may uphold [them] only if the evidence, viewed in the light
    most favorable to the government, could not have persuaded any
    trier of fact of the defendants' guilt beyond a reasonable doubt."
    Mubayyid,   
    658 F.3d at 47
    .       Similarly,    in   considering   the
    government's challenge to the District Court's due process ground
    for acquittal, our review is again de novo.             See United States v.
    Silva, 
    794 F.3d 173
    , 177 (1st Cir. 2015).
    - 28 -
    Because we agree with the government's contention that
    the District Court's grounds for granting the Rule 29 motions were
    mistaken, we will also consider Carter's contention that we may
    nonetheless affirm the District Court's judgment as to her because
    the evidence was insufficient to support her conviction of the
    charged offense.      As we will explain, we find that contention
    unavailing as well.
    Here, as before, our review is de novo. United States v.
    Velazquez-Fontanez, 
    6 F. 4th 205
    , 212 (1st Cir. 2021). The central
    inquiry is “whether ‘any rational trier of fact could have found
    the essential elements of the crime beyond a reasonable doubt.’”
    
    Id.
     (quoting United States v. Bailey, 
    405 F.3d 102
    , 111 (1st Cir.
    2005)).   We engage in it by viewing the record "in the light most
    favorable to the verdict and draw[ing] all reasonable inferences
    in the verdict's favor."    
    Id.
     (citing United States v. Meléndez-
    González, 
    892 F.3d 9
    , 17 (1st Cir. 2018)).
    Before explaining our reasons for agreeing with the
    government's challenges to the District Court's ruling on the
    defendants' Rule 29 motions, however, it is important to clarify
    up front a critical point about the discussion of the defenses
    just described that will follow.    We thus start our analysis with
    that clarification.
    - 29 -
    A.
    Questions implicating the FDA's authority to regulate
    compounders as "manufacturers" under the FDCA in the relevant
    period are of central import to the defenses at issue.     We thus
    emphasize up front that the analysis of those defenses that follows
    adopts -- as we have explained above we understand the District
    Court itself to have also adopted -- the premise (for which no
    preserved challenge has been made) that, during the life of the
    conspiracy, the FDA possessed the statutory authority under the
    FDCA to regulate NECC as a "manufacturer" because a compounded
    drug was a "new drug" within the meaning of the FDCA, see 
    21 U.S.C. § 321
    (p), whatever the FDA's own view (even if "mistaken") may
    have been as to whether it possessed that authority.5
    It is important to be clear about this premise for the
    following reason.   We do not dispute that, if the FDCA itself were
    properly construed to be limited in a way that precluded the FDA
    from exercising such regulatory power over NECC during the period
    of the alleged conspiracy, even if the FDA sought to exercise such
    authority after making known in advance its intention to do so, a
    legal impossibility defense would be available to the defendants
    5    We also note that no party has made the argument
    that NECC was an "outsourcing facility" as defined by 
    21 U.S.C. §§ 331
    (a), 333(a), and 353(b)(1) and thus eligible to be exempt
    from certain provisions of the FDCA if it satisfied several
    requirements, including registration with the FDA as such a
    facility and compliance with the current GMP.
    - 30 -
    on   that   basis.     Thus,   in   rejecting   the   defense   of   legal
    impossibility here, we do not mean to suggest otherwise.
    Moreover, we are aware that the defendants do attempt on
    appeal to advance a defense of legal impossibility grounded in
    that understanding of the legal limits on the FDA's regulatory
    authority in the relevant time period -- due to the limited manner
    in which they contend that the FDCA must itself be construed -- as
    an alternative basis for affirming the District Court's rulings on
    their Rule 29 motions.         But, neither defendant developed that
    argument below.
    Indeed, consistent with      that   finding of forfeiture,
    there is no indication that the District Court understood any such
    contention to have been advanced.        The opinion of the District
    Court not only did not address such a contention but also appeared
    to premise its own analysis on the understanding that the FDCA
    conferred such regulatory authority on the FDA.          See, e.g., 
    id. at 159
    .     Thus, we, like the government, do not understand the
    District Court,      with respect to    either variant of the legal
    impossibility defense that it laid out, to have held that such a
    legal limit on the FDA's authority was then in place.           The result
    is that any defense to the charges at issue before us on appeal
    that is premised on the contention that the scope of the FDCA
    itself did not reach pharmacies engaged in compounding during the
    life of the alleged conspiracy -- because the term "new drug" in
    - 31 -
    the FDCA did not encompass compounded drugs -- would have to
    satisfy the demanding plain error standard to succeed.                See United
    States v. Pinkham, 
    896 F.3d 133
    , 136 (1st Cir. 2018).                   But, the
    defendants cannot meet that standard, at least given the contrary
    circuit case law regarding the meaning of the FDCA during that
    time frame.       See Med. Ctr. Pharmacy, 
    536 F.3d 383
    , 395, 400; see
    also United States v. Rivera-Morales, 
    961 F.3d 1
    , 13 (1st Cir.
    2020) ("[A] criminal defendant generally cannot show that a legal
    error is clear or obvious in the absence of controlling precedent
    resolving   the     disputed   issue    in    his   favor."      (citing    United
    States v. Delgado-Sánchez, 
    849 F.3d 1
    , 10-11 (1st Cir. 2017);
    United States v. Amaro-Santiago, 
    824 F.3d 154
    , 163 (1st Cir.
    2016))).
    For     these   reasons,    our      discussion      of   the   legal
    impossibility and due process defenses that will follow adopts as
    its sole focus the focus of the District Court, the government,
    and the defendants in their preserved arguments to us on appeal.
    It thus considers only how the FDA's own understanding of its
    regulatory authority -- as reflected in part in its own public and
    internal    statements      regarding   it    --    bears   on    Carter’s    and
    Conigliaro’s criminal liability under § 371 on the understanding
    that the FDCA is best construed to have authorized the FDA to treat
    a compounded drug as a "new drug" and thus a compounding pharmacy
    as a "manufacturer" under the FDCA during the years in question.
    - 32 -
    B.
    With that background in place, we are -- at last -- well
    positioned to take up the government's argument that, given the
    state of regulatory play during the life of the conspiracy, neither
    variant of the legal impossibility defense that the District Court
    described as being available to the defendants was available.                         The
    government further contends that any fair-warning-based defense
    (whether rooted in the Fifth Amendment's Due Process Clause or the
    application of the rule of lenity to the "government functions"
    element of § 371) is also -- given the relevant regulatory history
    -- unavailing.        We agree with the government in both respects.
    1.
    We start with the government's arguments as to the
    District Court's first way of framing the legal impossibility
    defense.      Here, the government appears to treat the District Court
    as   having    held    that   the   defendants        made    out    a     viable   legal
    impossibility      defense    because,         even   if     the    FDCA    would    have
    authorized the FDA to have asserted regulatory authority over NECC
    as   a   manufacturer     during    the    alleged      conspiracy,         the     record
    established that the agency had disavowed any authority to do so
    during the relevant time frame and thereby had barred itself from
    doing so.      On this understanding, then, the District Court held
    that, due to what the record showed regarding the FDA's own
    understanding of its own regulatory power, mistaken though it may
    - 33 -
    have been, there were no "government functions" with which the
    defendants could conspire to interfere and hence the charged crime
    was one that it was legally impossible for the defendants to
    commit.
    It is not entirely clear to us that the District Court
    did in fact embrace the holding regarding the defense of legal
    impossibility that the government attributes to it.         The District
    Court stated that a disavowal-based variant of that defense would
    "plainly be available" if the record showed that the agency had
    made such a disavowal.    Conigliaro, 384 F. Supp. 3d at 158.       But,
    it is not evident to us that the District Court then actually held
    that judgments of acquittal must be entered on the basis of the
    variant of the legal impossibility defense that it described that
    was predicated on the record showing that the agency had in fact
    made such a disavowal of its legal authority.        The District Court
    appeared instead to hinge its ruling vis-a-vis legal impossibility
    on the second variant of that defense that it described, and which
    we next address.
    Nevertheless,   the   defendants,   like    the   government,
    appear to treat the District Court as having relied on the first
    variant of the legal impossibility defense and not solely the
    second, and, in any event, they urge us to embrace it ourselves.
    We thus proceed on the understanding that the District Court did
    - 34 -
    so hold, and we conclude that, insofar as it did, it erred, just
    as the government contends.
    As a threshold matter, we are dubious that, even if the
    FDA had disavowed its legal authority during the life of the
    conspiracy, it would follow that the offense charged here was
    legally impossible to commit.         And that is so because the offense
    charged   here    was    conspiracy   to    defraud    the   FDA    by    means   of
    deceptive practices that were designed to prevent the agency from
    determining that the company was operating as a manufacturer.
    An agency's "mistaken" disavowal of authority is not
    written in stone.        See FCC v. Fox Television Stations, Inc., 
    556 U.S. 502
    , 513 (2009); Massachusetts v. EPA, 
    549 U.S. 497
    , 532
    (2007).   Thus, the FDA would appear to have been entitled at any
    time to reverse course and assert the authority that (for purposes
    of   evaluating    the    existence    of    this     variant      of    the   legal
    impossibility defense) we understand the FDCA itself would have
    entitled it to assert vis-a-vis compounders like NECC, at least so
    long as the FDA in reversing course did so on a going-forward basis
    and after providing due notice. Indeed, it is hard for a disavowal
    of authority to be "mistaken" -- as the District Court plainly
    indicated it was assuming any disavowal here might have been -- if
    the authority in fact does not exist.          See Conigliaro, 384 F. Supp.
    3d at 158.
    - 35 -
    Thus, even if there had been a mistaken disavowal of
    authority by the FDCA vis-a-vis its power to treat compounders
    like NECC as manufacturers, we do not see why such a mistaken
    disavowal would provide the basis for a legal impossibility defense
    that would bar a finding that Carter and Conigliaro violated § 371.
    Regulated parties who conspire to trick an agency into thinking
    they are conducting themselves other than they are -- and in a
    manner that would be material to an agency's decision about whether
    it may wish to assert regulatory authority that it had previously
    disavowed but legally might be capable of asserting upon rethinking
    the disavowal -- may easily be understood to have defrauded the
    United States, notwithstanding that during the period that the
    conspiracy was ongoing the agency had wrongly construed its power
    too narrowly.   The deception by the alleged conspirators could be
    found to have prevented the agency from rethinking its authority
    in light of how regulated parties were in fact operating and
    thereby lulled the agency into not determining that it needed to
    reverse course and, on a prospective basis after providing due
    notice, assert the regulatory authority that it had previously
    disclaimed.
    There is, however, also a more record-specific reason in
    this case for rejecting this disavowal-based ground for crediting
    a defense of legal impossibility to the charges at issue.      The
    - 36 -
    record fails to support a finding that the claimed disavowal
    occurred.
    The District Court offered a lengthy account of its
    understanding of what the record showed about the extent of FDA
    authority   over    compounders      during    the    period      of    the   alleged
    conspiracy.     In the course of that account, the District Court
    addressed the government's contention that the complex regulatory
    history   revealed        that,   during    the     life   of     the   conspiracy,
    "compounding pharmacies would be subject to the drug approval,
    manufacturing, and inspection provisions of the FDCA" and that
    "NECC was making new drugs, as defined in the FDCA, and was subject
    to the jurisdiction of the FDA."               Conigliaro, 384 F. Supp. 3d
    at 161 (quoting the government).
    The District Court         explained      that "[t]he        difficulty
    with" the government's contention was that, in its view, "the most
    significant actor rejected it:         the FDA itself."         Id. The District
    Court indicated that it was relying for that critical finding on
    "internal memoranda, testimony by senior FDA officials before
    various   House     and    Senate    committees      as    part    of    Congress's
    investigation      into    the    fungal    meningitis      outbreak,         in-court
    testimony and exhibits offered at the trial" it oversaw.                          Id.
    (footnote omitted).
    But, the materials that the District Court identified as
    support for its findings do not support a finding that the alleged
    - 37 -
    disavowal occurred.        It is true that, from that collection of
    evidence, as the District Court found, "the picture emerge[d] of
    an agency struggling to make sense of a statutory regime that
    Congress had not updated since 1938 and that had been overwhelmed
    by the rapidity of the advances in modern medicine and pharma."
    Id. at 162.     The District Court also supportably found that the
    FDA was "under considerable pressure" due to developments in the
    pharmaceutical industry itself that had resulted in a "demand
    vacuum"   for   generics    and   specialty      drugs       that   "compounding
    pharmacies like NECC stepped in to fill."              Id.   Nor do we disagree
    with the District Court that the record shows "the FDA recognized
    that an overly robust enforcement posture on its part towards
    compounders could jeopardize hospitals' and clinics' supplies of
    potentially life-saving medications."            Id.
    But, the District Court did not identify any statement
    in which the FDA during the time period in question publicly or
    internally disavowed that it possessed regulatory power to treat
    a compounding pharmacy as a manufacturer, including even one
    engaged in practices not unlike those in which the government
    asserts the record suffices to show that NECC was then engaged.
    The District Court did note statements in which FDA officials
    expressed concerns about the fit between the existing regulatory
    structure and compounding.        Id.    It noted as well expressions of
    concern within the FDA about whether it did have the authority to
    - 38 -
    treat compounders as manufacturers and the circumstances in which
    it could do so.   Id. at 163.   But none of those statements support
    the conclusion that the FDA in fact disavowed its legal authority
    to so treat them.
    Moreover, the guidance documents that the FDA issued
    during the relevant time period concerning its authority to treat
    compounded drugs as "new drugs" under the FDCA affirmed rather
    than disclaimed the FDA's legal authority over compounders under
    that statute's "new drug" authority.    See Western States, 
    535 U.S. at 362
     ("[W]hile retail pharmacies . . . are exempted from certain
    requirements of the [FDCA], they are not the subject of any general
    exemption from the [FDCA's] new drug, adulteration, or misbranding
    provisions." (quoting 1992 CPG).      To be sure, in 2002, the FDA
    issued guidance that stated that "section 503A" -- the section of
    the FDAMA that codified the FDA's 1992 CPG to compounders -- "is
    now invalid" in light of the Supreme Court's decision in Western
    States and the Ninth Circuit's determination that § 503A was not
    severable.   See Shalala, 
    238 F.3d 1090
    .   But, that statement -- at
    least in context -- cannot be read to be a disavowal of authority
    over compounders.   In that same guidance, the FDA explained that
    "when the scope and nature of a pharmacy's activities raise the
    kinds of concerns normally associated with a drug manufacturer and
    result in significant violations of the new drug, adulteration, or
    misbranding provisions of the [FDCA], [the] FDA has determined
    - 39 -
    that it should seriously consider enforcement action" under the
    FDCA.
    The FDA did also define a safe harbor from its regulatory
    oversight over compounding pharmacies in the guidance it publicly
    supplied.        But,   it defined that safe harbor        as encompassing
    compounding pharmacies that produced and sold drugs "upon receipt
    of a valid prescription for an individually identified patient
    from a licensed practitioner."
    Indeed, in another case pending before this Court also
    stemming from the NECC disaster, United States v. Chin (Chin II),
    No. 20-1050 (1st Cir. ___), the government has made clear that the
    safe    harbor    defined   in   the   2002   CPG   extended    to   only   "the
    compounding of drugs prior to the receipt of valid, patient-
    specific prescriptions under specified circumstances, not shipping
    them before the receipt of a valid prescription."              Therefore, even
    if NECC's compounding practices were in compliance with the safe
    harbor, its delivery practices were not.            The announcement of the
    safe harbor is thus at odds with the notion that the FDA disavowed
    authority to regulate compounders outright or even to regulate
    compounders alleged to have engaged in the practices that NECC was
    alleged to have engaged in here.
    At most, then, the record supports a finding that the
    FDA publicly rejected the notion that its regulatory authority to
    treat compounders as manufacturers was clear or without caveats.
    - 40 -
    But, that is not a finding of an actual disavowal by the FDA of
    its authority to treat NECC as a manufacturer under the FDCA,
    insofar as that company was engaging in practices that did not
    entitle it to claim the protection of the safe harbor that the
    agency had publicly identified in the 2002 guidance.           Thus, while
    the District Court did state that "the bottom line" was that
    "during the critical times, these defendants (and NECC) could not
    have defrauded the FDA by interfering with the relevant regulatory
    functions because there were none to speak of,"           Conigliaro, 384
    F. Supp. 3d at 166, we cannot agree that the record supports such
    a finding.
    This conclusion is not undermined by the support in the
    record for the District Court's finding that "the evidence plainly
    show[ed] that during the life of the charged conspiracy, the FDA
    was not, and did not believe that it should be, in the business of
    regulating companies like NECC that were engaged in anticipatory
    pharmacy     compounding."      Id.   at 165.   That    finding   does     not
    establish that the FDA understood itself to lack the power under
    the   FDCA    to   treat   a   compounding   pharmacy   like   NECC   as    a
    manufacturer.      It establishes only that, at that time, the FDA was
    of the view that a certain type of dispensing by compounding
    pharmacies -- because of the bounded way in which it was undertaken
    -- was not something that the FDA "should" be in the "business" of
    policing. That is not itself evidence of a disavowal of authority,
    - 41 -
    let alone a disavowal of authority to regulate the practices in
    which NECC was engaged.
    The defendants nevertheless insist that the District
    Court was correct in finding that the FDA had disavowed its
    authority over compounders like NECC by the time the alleged
    conspiracy took place.    In support, they point to the testimony of
    Samia Nasr, who led FDA's Center for Drug Evaluation and Research
    Compounding Team from 2011 to 2016.      Nasr testified at trial that
    the FDA put all inspections of compounding pharmacies on hold from
    2009 to 2012.
    With respect to NECC, the defendants contend, this hold
    became manifest in the FDA's 2011 and 2012 correspondence with the
    Colorado Board of Pharmacy that the defendants introduced into
    evidence.     There, the Colorado regulators notified the FDA that
    NECC was shipping drugs in bulk quantities across state lines and
    the FDA, in response, referred the Colorado regulators to the
    Massachusetts Board of Pharmacy rather than investigating the
    allegation.       According   to   the   defendants,   the   "national
    moratorium" on inspections compels the conclusion that the FDA
    "affirmatively disclaimed its authority" to regulate compounders.
    The evidence to which the defendants point, however,
    shows at most that the FDA made an internal policy decision not to
    exercise its authority over compounders -- a decision that lacked
    legally binding force that would preclude the FDA from reversing
    - 42 -
    course (after giving proper notice) on even a prospective basis.
    Cf. Fox Television Stations, 
    556 U.S. at 515
    .   The defendants thus
    fail to show that the evidence compelled a reasonable jury to
    conclude that the FDA disavowed its legal right to regulate
    compounders, such that it understood itself to be as powerless
    legally during the period of the alleged conspiracy as if the FDCA
    had been amended during that period of time to strip the FDA of
    exercising the power it was not exercising.   And, for that reason,
    the first ground on which the District Court based its conclusion
    of legal impossibility -- or, at least, the first ground the
    parties treat the District Court as having based that conclusion
    on -- does not hold up.
    2.
    The government also challenges the District Court's
    other formulation of the legal impossibility defense.      In that
    formulation, the District Court focused on the FDA having abstained
    from exercising its regulatory authority over compounders as a
    result of its uncertainty about its own authority, even assuming
    that the agency did not in doing so actually disavow the existence
    of such regulatory authority.       The District Court reasoned as
    follows in justifying its decision to grant the Rule 29 motions
    based on a defense of this kind.
    The District Court began this aspect of its analysis by
    finding, on the basis of the FDA's conflicting public statements
    - 43 -
    about    its    authority   to   regulate   compounders    as   well   as   its
    inability to clearly distinguish compounding manufactures from
    compounding       pharmacies,     that    "the     FDA's   'authority       over
    compounding [was] limited, unclear and contested.'"              Conigliaro,
    384 F. Supp. 3d at 165 (quoting congressional testimony).                     In
    particular, the District Court noted that "the FDA was unable under
    [c]ongressional questioning to articulate a clear line between
    compounding and drug manufacturing."              Id. at 162.   The District
    Court pointed to testimony by Dr. Janet Woodcock, an FDA official,
    before Congress, that described the FDA's understanding of "how
    much product . . . a drug compounder [could] make without being
    designated a manufacturer" as "blurry" and that there "[was] no
    bright line in the statute that says when you cross that line and
    become    a    manufacturer."      Id.    at 163    (quoting    congressional
    testimony).
    Next, the District Court addressed the import of that
    finding.       It explained that the ambiguity in these statements was
    such that, even if the FDA had authority under the FDCA to treat
    compounders like NECC as manufacturers during the years of the
    alleged conspiracy, the "contrary position[] . . . taken by the
    FDA itself [at that time] . . . raises legitimate concerns of
    - 44 -
    constitutional due process and fair notice."6              Id. at 166.    It then
    appeared to hold, based on that conclusion, that those due process
    and   lenity     concerns     warranted    a   narrow   construction      of   the
    "government functions" element of the § 371 offense with which the
    defendants were charged.         Finally, the District Court appeared to
    wrap up its analysis by holding that this narrow construction
    precluded       the   "government   functions"     element    of   §    371    from
    encompassing regulatory authority of the uncertain type that the
    District Court had found that the FDA possessed.
    Here, too, we agree with the government that this chain
    of reasoning is mistaken.           As an initial matter, we do not find
    persuasive the notion that it was legally impossible for the
    defendants      to    have   conspired    to   interfere   with    a   government
    function just because it was unclear during the life of the
    conspiracy whether the government had that function or understood
    itself to have it.           That it is unclear to alleged conspirators
    whether the government will assert a regulatory function because
    it is convinced that the government is uncertain of its authority
    6  The District Court noted as well that a federal
    district court in the Eleventh Circuit had found that "though [the
    FDA] certainly has the statutory authority to do so, the FDA has
    chosen not to draw the line between manufacturing and traditional
    compounding with formal regulations.       Nor has it sought to
    distinguish traditional pharmacy compounding from pharmacists who
    are manufacturing under the guise of compounding."           United
    States v. Franck's Lab, 
    816 F. Supp. 2d 1209
    , 1248 (M.D. Fla. Sept.
    12, 2011) (vacated pursuant to the parties' join motion).
    - 45 -
    to assert it provides no basis for concluding that such a function
    does not exist.   Thus, if the government function was one that the
    government had the legal authority to exercise -- and we have no
    reason not to assume that was the case, at least with respect to
    prospective exercise after the provision of due notice -- then we
    do not see how it would be legally impossible for the defendants
    to conspire to trick the government into wrongly concluding through
    misrepresentations about NECC's means of operating that it could
    not be regulated pursuant to that function.
    That    is   not   to   say   the   lack   of   clarity   about   the
    existence of that function         -- especially if fostered by             the
    government's indications of its own doubts about the existence of
    that function -- would have no bearing on whether the evidence in
    a given case suffices to prove the elements under § 371 beyond a
    reasonable doubt.      It is only to say that the lack of clarity about
    the existence of a government function does not equate to its non-
    existence.
    Thus, such lack of clarity cannot in and of itself make
    it legally impossible for the defendants to have conspired to
    interfere with a government function, insofar as the function's
    existence is not disputed as a matter of law and there is no basis
    for concluding that the function could not be asserted after the
    provision of due notice prospectively.           For, if that is the case,
    then so long as the evidence is otherwise sufficient the fact that
    - 46 -
    the   FDA's    authority   was   less   than     clear   during   the   alleged
    conspiracy -- and that the FDA itself understood it to be unclear
    during that time frame -- is of no moment for purposes of assessing
    the availability of the defense of legal impossibility to the § 371
    charges at issue.       After all, those charges concern an alleged
    conspiracy to trick the FDA into thinking that a company subject
    to its regulatory authority was operating differently than it was
    in order to conceal the fact that its actual manner of operating
    would make it subject to more intensive regulatory oversight.
    Nor is there force to the contention that the defendants'
    legal impossibility defense to their § 371 charges has merit
    because -- due to concerns about fair warning -- the high degree
    of uncertainty about which compounders were subject to FDA's
    regulations pertaining to drug manufacturers during the period of
    time at issue itself precluded the FDA from lawfully exercising
    regulatory authority over NECC as if it were a manufacturer even
    if the FDA otherwise would have had such authority under the FDCA.
    The defendants were not charged with violating the FDCA based on
    evidence showing that NECC was operating as a manufacturer.                They
    were charged with violating § 371 for conspiring to interfere with
    the FDA's ability to determine whether to regulate NECC as such by
    misleading the FDA about practices of the company that could bear
    on just that determination.
    - 47 -
    Thus, absent the FDA lacking the legal power to do so
    even on a going forward basis -- and after having given the
    requisite degree of fair warning of its intention to do so -- we
    see no basis for concluding that the ambiguity about the FDA's
    authority that the District Court identified precluded it from
    being "reasonably clear at the relevant time that the defendant's
    conduct was criminal."           Lanier, 
    520 U.S. at 267
    .         We appreciate
    the District Court's concern with the "worrisome position that, in
    this context, what is not affirmatively permitted by the law is
    criminally prohibited."          Conigliaro, 384 F. Supp. 3d at 166.          But,
    because the defendants were charged with conspiring to defraud the
    FDA by impeding its ability to determine NECC's status through
    misrepresentations about the company's operations, we do not find
    that "worrisome position" implicated here.                 As we have explained
    above,   the      precise   contours     of     the   "government    functions"
    implicated in a § 371 conspiracy -- assuming the agency has the
    authority to engage in those functions in the first place -- do
    not   have   to    be   defined    before     defendants    can   formulate    the
    requisite    agreement      to    interfere    with   those   functions.       The
    defendants here could have been mistaken as to whether NECC's
    compounding practices would have run afoul of the FDA's regulations
    under the FDCA while still conspiring to interfere with the FDA's
    ability to draw such a conclusion.             After all, a conspiracy does
    not need to be successful in order to be illegal.
    - 48 -
    In support of the District Court's finding of legal
    impossibility, the defendants make the related argument that it
    was legally impossible for them to obstruct the FDA in deeming
    NECC to be a manufacturer because the FDA did not actively make
    such determinations concerning compounding manufacturers in the
    indictment period.    The defendants point to testimony suggesting
    that the agency was, at the very least, hesitant to enforce its
    regulations concerning drug manufacturers against compounders and
    that it even abstained from conducting inspections of compounders
    for a period.
    But, for purposes of a defense of legal impossibility,
    the FDA's actual exercise of its legal authority over compounders
    in general and over NECC specifically is irrelevant.       That is so
    because the FDA's exercise of its legal authority can at most show
    the factual impossibility of actually interfering with the FDA's
    oversight function during the time of the alleged conspiracy.       The
    defendants, however, were convicted of conspiring to defraud the
    United States by interfering with the FDA's oversight function,
    not of actually interfering with its oversight function.           And,
    because,   as   the   District   Court   correctly   stated,   "factual
    impossibility is not a defense to . . . liability . . . for
    inchoate offenses such as conspiracy or attempt," the literal
    inability of the defendants to actually interfere with the FDA's
    enforcement actions cannot be a defense.     Conigliaro, 384 F. Supp.
    - 49 -
    3d at 153 (quoting Dixon, 
    449 F.3d at 202
    ).                   Or, to put it
    differently, if a      juror could find the defendants guilty of
    conspiring     to   interfere   with    the     FDA's    oversight      function
    regardless of whether they succeeded in interfering with it, then
    that juror could also find them guilty of doing so even if the FDA
    did not actually engage in oversight over compounders during that
    time.     See United States v. Jimenez Recio, 
    537 U.S. 270
    , 274
    (2003).
    Conigliaro raises one final argument in support of the
    District Court's finding of legal impossibility:            he contends that
    it was legally impossible for him to have violated § 371 because
    § 371   only   criminalizes     conspiracies     to     defraud   the   federal
    government and that here the object of the conspiracy was a state
    agency.    See Tanner v. United States, 
    483 U.S. 107
    , 130 (1987).
    Conigliaro is correct that a conspiracy to defraud a state agency,
    such as a state pharmacy board, would not violate § 371.                But, the
    question of whether the object of the conspiracy charged here was
    the federal government is a factual one for the jury.              At its root
    then, his argument is that there was insufficient evidence for a
    juror to have concluded that he conspired with others to defraud
    the FDA.     As Conigliaro has not brought such a challenge, we do
    not consider whether the evidence is sufficient to support his
    conviction under § 371. To the extent that this argument is raised
    - 50 -
    by Carter, we consider its merits in the course of our evaluation
    below of the sufficiency of the evidence supporting her conviction.
    3.
    We come, then, to the government's challenge to the
    District Court's due process ground for acquittal.              In determining
    whether the defendants' convictions comported with the due process
    requirement   of    fair   notice,   "the   touchstone     is    whether      the
    [relevant] statute, either standing alone or as construed, made it
    reasonably clear at the relevant time that the defendant's conduct
    was criminal."     Lanier, 
    520 U.S. at 267
    .       The defendants contend,
    and the District Court agreed, that such clarity was absent in
    this case.    In support, the defendants reassert:
    •   That the FDA's statutory authority to regulate compounding
    pharmacies    as   manufacturers    under   the    FDCA    was   at   best
    "contested"    and   "unclear" --     especially    in     the   wake    of
    Western States;
    •   That the FDA disclaimed whatever authority it had, thus again
    depriving the defendants of fair notice;
    •   That because the FDA did not exercise whatever authority it
    had over compounders, the defendants were not on notice that
    there were "government functions" with which their activities
    could "interfere," Goldberg, 
    105 F.3d at 773
    ;
    •   That because neither the FDCA nor the FDA's construal of that
    statute drew a clear line in the relevant respect, it was
    - 51 -
    unclear     that    NECC's      compounding       activities   constituted
    manufacturing and, thus, for that reason, too, the defendants
    lacked fair notice that their alleged conspiracy to cover up
    those activities would make them guilty of conspiring to
    interfere with the FDA's "government functions" in violation
    of 
    18 U.S.C. § 371
    .
    For much the same reasons that we have already given in explaining
    why the legal impossibility defenses are not available here, we
    also conclude that there is no due process-based bar to the
    defendants being convicted under § 371.
    We do not dispute the District Court's finding that
    the   FDA   did   not    in    fact   exercise    its    legal   authority   over
    compounders that operated as manufacturers during the time of the
    alleged conspiracy.           But, the defendants fail to show that this
    fact is relevant to the defendants' due process right of fair
    notice (or even to an application of the rule of lenity).
    The defendants' contention in this respect appears to
    be that, due to notice concerns rooted in the guarantee of due
    process, we must construe the meaning of "government functions"
    for purposes of the "defraud clause" of § 371 narrowly to refer to
    functions that the government is actually carrying out rather than
    those that it merely has the legal authority to carry out.                   And
    that is so, the defendants appear to contend further, because this
    court noted in United States v. Goldberg, 
    105 F.3d 770
     (1st Cir.
    - 52 -
    1997), that the "defraud clause" has "a special capacity for abuse
    because of the vagueness of the concept of interfering with a
    proper government function."      
    105 F.3d at 775
    .
    But,   neither    Goldberg     nor     our   other    due   process
    precedents supports this construction of the "defraud" clause.
    "[T]he touchstone" for determining whether a conviction comported
    with the due process requirements of fair notice and lenity, as we
    noted, "is whether the [relevant] statute, either standing alone
    or as construed, made it reasonably clear at the relevant time
    that the defendant's conduct was criminal."               Lanier, 
    520 U.S. at 267
    .    If the defendants had been charged and convicted of
    interfering with the FDA's oversight function over compounders
    that operated as manufacturers, we may assume that it would matter
    for due process purposes whether it was reasonably clear that the
    FDA possessed the function to regulate NECC's activities as a legal
    matter.   But, here, as we noted in our discussion of legal versus
    factual impossibility, the defendants were not so charged.                  They
    were charged with the distinct offense of conspiring to interfere
    with the FDA's oversight function over compounders that operated
    as   manufacturers.     And,   with     respect    to   that    offense,    the
    uncertainty   that    the   District    Court   described       regarding   FDA
    authority does not preclude it from being reasonably clear that a
    conspiracy to pass off NECC as a kind of compounding pharmacy that
    it was not -- through the stratagems detailed in the indictment -
    - 53 -
    -- was one prohibited by § 371.         Or, at least, that uncertainty
    does not do so if we find -- as we must, given the arguments made
    to us -- that the FDA remained free throughout the life of the
    conspiracy to choose to regulate compounders as manufacturers
    under the FDCA in accord with the 2002 CPG insofar as it gave
    notice of its intention to do so.
    In other words, the defendants could have reasonably
    understood that agreeing to make material misrepresentations to
    the FDA about how NECC operated so as to shield it from being
    deemed a manufacturer under the FDCA could have impeded the FDA's
    ability to make a determination regarding NECC's status as a
    manufacturer under that same statute.       And, as the making of that
    determination is itself an oversight function of the FDA -- and as
    there is no preserved argument to us supporting the conclusion
    that the FDA was legally barred from exercising that function even
    prospectively and after giving notice of its intent to exercise it
    during the conspiracy -- the defendants were on notice that the
    conspiracy's alleged stratagems could interfere with the FDA’s
    exercise   of   that   function.   We    consequently   agree   with   the
    government that the District Court erred in finding that the fair
    notice concerns -- whether rooted in the Due Process Clause or
    precedent concerning when the rule of lenity applies -- precluded
    the defendants’ convictions.
    - 54 -
    C.
    Having   found   no   merit   to   the   defendants'   legal
    impossibility and due process arguments, we have left only the
    separate ground on which Carter asks us to affirm her post-verdict
    judgment of acquittal.     Here, she contends that the record does
    not contain sufficient evidence to permit a reasonable juror to
    find beyond a reasonable doubt that she knowingly and willfully
    joined the alleged conspiracy.7
    Carter asks us to remand this issue to the District
    Court, which did not previously reach her sufficiency challenge.
    But, we routinely resolve such challenges on appeal and see no
    reason to deviate from that practice in this case.         See, e.g.,
    Stepanets, 989 F.3d at 97, 101, 112.         Reviewing de novo and
    construing the evidence in the light most favorable to the verdict,
    see id. at 95, we find that a reasonable jury could have found
    beyond a reasonable doubt that Carter conspired to violate § 371.
    We therefore conclude that Carter's sufficiency argument has no
    merit.
    7    Conigliaro made a similar sufficiency argument
    below, but does not renew it on appeal.     Insofar as Conigliaro
    does mean to renew his insufficiency of the evidence challenge
    when he contends in his surreply brief that "there is no evidence
    in the Record that [he] ever misrepresented anything to the FDA
    about prescriptions or anything else," he has failed to adequately
    develop that challenge. See United States v. Zannino, 
    895 F.2d 1
    ,
    17 (1st Cir. 1990).
    - 55 -
    At    trial,    the   government    introduced    an    email   into
    evidence that Cadden sent Carter on May 21, 2012, and that Carter
    forwarded on that same day to other NECC employees with the words:
    "New confirming guidelines in regards to patient names. (please
    see Barry’s e-mail below).           When an order is received that does
    not have the correct number or format of patient names, then we
    need to show Barry the order.         At that time, he will determine how
    to proceed.”        Cadden's email below those words instructed NECC
    employees who processed orders for medications that "[t]he MAX
    total number of units (vials, syringes, etc.) per patient must
    make sense.        I must be able to logically explain to a regulator
    why we processed x# of units per patient. . . . All names must
    resemble 'real' names . . . no obviously false names!                   (Mickey
    Mouse[)]."        (emphases added).
    On the basis of this email thread, a juror could find
    that Carter was familiar with NECC's practice of pretending to
    process drugs pursuant to valid, patient-specific prescriptions
    and   also        familiar    with    the   target     of     that    pretense:
    "regulator[s]."        The jury could likewise find that Carter took
    deliberate actions to promote that pretense -- in this case, by
    forwarding Cadden's instructions to other staff.
    Moreover, the record includes internal emails in which
    Carter admitted that she and her colleagues had processed orders
    without valid prescriptions and instead used patient names from
    - 56 -
    previous orders -- admissions that again support the finding that
    she knowingly and willfully joined the § 371 conspiracy.                                  In
    September    2011,      for    instance,     Carter     notified          an   NECC    sales
    representative that "[w]e processed [the order of a customer] using
    old p[atient] names."          And in June 2012, Carter similarly emailed
    her alleged co-conspirator Ronzio that she had "used the old names
    in the file that we had not used previously," and that "[w]e are
    still processing the order for today so [the customer] will not
    need to send in more names."
    Carter seeks to resist the weight of this evidence by
    arguing that even if the evidence was sufficient to support a
    finding that she knowingly and willingly helped to process orders
    without   valid       prescriptions       and   also    that    she       knowingly     and
    willingly helped to cover up that practice, the evidence did not
    suffice to support the further finding that she did so to interfere
    with the regulatory function of the FDA.                That further finding, as
    she   rightly    contends,      is     necessary     because        for    a   conspiracy
    conviction      to    stand,    "the      evidence     must    establish        that    the
    defendant . . .        intended      to    effectuate         the    objects      of    the
    conspiracy."         United States v. Burgos, 
    703 F.3d 1
    , 11 (1st Cir.
    2012) (internal quotations and citation omitted).                         However, there
    was in fact sufficient evidence to support that further finding in
    this case.
    - 57 -
    At trial, a law enforcement agent testified that he had
    found a folder entitled "Tech Manual" at Carter's workstation.
    That folder included a document labeled "compounding legally."
    The jury could thus reasonably infer that Carter was aware of the
    FDA's regulatory authority and enforcement approach and therefore
    also aware that NECC, given its practice of compounding large
    quantities of drugs without valid prescriptions, was subject to
    that authority and enforcement, and that covering up that practice
    by, for instance, using fictitious patient names, would interfere
    with the FDA's ability to exercise its oversight over NECC.
    Other circumstantial evidence          added support    to this
    inference by showing that some of Carter's closest colleagues made
    that awareness explicit.      The jury, for instance, heard testimony
    by Ronzio that Cadden had considered and rejected the possibility
    of officially registering NECC as a manufacturer with the FDA in
    internal conversations because he worried that NECC was "very far
    from . . . current Good Manufacturing Practices, which the FDA
    required."    The record also contained communications between NECC
    and its regulators -- both at the FDA and at the state level -- in
    which Carter's colleagues represented that NECC was a pharmacy
    that produced drugs only pursuant to valid prescriptions and was
    therefore    not   subject   to   the   FDA's    stricter   regulations   for
    manufacturers.
    - 58 -
    For example, Conigliaro claimed in a faxed letter to the
    Missouri State Board of Pharmacy on March 23, 2009, that "[a]ll of
    [NECC's] compounding activities are carried out in compliance with
    applicable local, state and federal rules and regulations as well
    as . . . the FDA's Compliance Policy Guide Sec. 460.200 Pharmacy
    Compounding," which is the FDA's 2002 CPG (emphases added).        A few
    years earlier, on October 1, 2004, he claimed in an email to the
    FDA that NECC "compounds numerous different sterile and non-
    sterile   preparations   to     fill    patient   specific,    physician
    prescriptions," that it "always compound[s] only the amount [it]
    anticipate[s] will be required based on prescribing physician's
    historical prescribing patterns," and, finally, that it is a
    "small-scale,   family-run,     compounding-only     pharmacy,   not   a
    manufacturer.   As such we are not subject to GMP [current good
    manufacturing practice]."
    Similarly, Cadden wrote to the FDA on January 5, 2007,
    to deny allegations that the FDA had made in its warning letter to
    NECC -- namely, that NECC "told physicians that [it] would fill
    prescriptions written in the name of a staff member rather than in
    the name of an actual patient."        Cadden assured the FDA that this
    alleged practice "contradicts all of [NECC’s] standard operating
    procedures."     He   claimed    that     "NECC   dispenses   compounded
    medications upon the receipt of valid prescriptions.             We are
    - 59 -
    engaged   in    the    practice           of     pharmacy        and     comply    with      the
    Massachusetts Board of Registration in Pharmacy’s laws and rules."
    Based on this evidence as a whole, a reasonable juror
    could find that Carter, who occupied a supervisory role within
    NECC and worked closely with Cadden and Conigliaro, shared her
    alleged   co-conspirators'               intention         of    interfering       with      the
    regulatory functions of the FDA.                  See United States v. McDonough,
    
    727 F.3d 143
    , 156 (1st Cir. 2013) ("[A]n agreement to join a
    conspiracy     may . . .       be        proved       by   direct      or    circumstantial
    evidence." (internal citations and quotation marks omitted)); see
    also Mubayyid, 
    658 F.3d at 57
     ("[A] conspiracy may be based on a
    tacit agreement shown from an implicit working relationship."
    (citations     and    quotation          marks        omitted));       United     States      v.
    Serrano, 
    870 F.2d 1
    , 7 (1st Cir. 1989) (concluding that evidence
    of   fraudulent      intent    was        sufficient        in    part      because     of   the
    defendant's "supervisory responsibilities").                           Finding sufficient
    evidence in the record to support Carter’s conviction, we reject
    Carter’s argument that the District Court’s judgment of acquittal
    can be affirmed on these alternative grounds and reverse.
    III.
    Because, as we have concluded, the District Court's
    post-verdict      judgments         of    acquittal        must     be      reversed,     there
    remains   to   address        the    alternative           request       that     Carter     and
    Conigliaro both made for a new trial.                      Deeming this request moot,
    - 60 -
    the District Court did not rule on it below, even though Federal
    Rule of Criminal Procedure 29(d)(1) provides that "[i]f the court
    enters a judgment of acquittal after a guilty verdict, the court
    must also conditionally determine whether any motion for a new
    trial should be granted if the judgment of acquittal is later
    vacated or reversed."   Because we review a district court's new-
    trial ruling for an abuse of discretion, see, e.g., United States
    v. Gonzalez, 
    949 F.3d 30
    , 34 (1st Cir. 2020), and because we do
    not have full briefing on the defendants' arguments in support of
    their request for a new trial, we remand this request to the
    District Court, in accord with the requests of the parties.
    IV.
    We   thus   reverse   the   District   Court's   post-verdict
    judgments of acquittal, reinstate the jury's convictions, and
    remand to the District Court for further proceedings consistent
    with this opinion.
    - 61 -