AFSCME Iowa Council 61 v. State of Iowa and Iowa Public Employment Relations Board ( 2019 )


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  •                IN THE SUPREME COURT OF IOWA
    No. 17–1841
    Filed May 17, 2019
    AFSCME IOWA COUNCIL 61, JOHNATHAN GOOD, RYAN De VRIES,
    TERRA KINNEY, and SUSAN BAKER,
    Appellants,
    vs.
    STATE OF IOWA and IOWA PUBLIC EMPLOYMENT RELATIONS
    BOARD,
    Appellees.
    Appeal from the Iowa District Court for Polk County, Arthur E.
    Gamble, Judge.
    Public employee union and several members appeal summary
    judgment dismissing constitutional challenges to 2017 amendments to
    Iowa   Code   chapter   20,     the   Public   Employment   Relations   Act.
    AFFIRMED.
    Mark T. Hedberg and Sarah M. Baumgartner of Hedberg &
    Boulton, P.C., Des Moines, for appellants.
    Matthew C. McDermott, Michael R. Reck, Kelsey J. Knowles, and
    Espnola F. Cartmill of Belin McCormick, P.C., Des Moines, for appellees.
    2
    WATERMAN, Justice.
    This appeal, submitted with Iowa State Education Ass’n v. State,
    ___ N.W.2d ___ (Iowa 2019), also filed today, presents constitutional
    challenges to the 2017 amendments to the Public Employment Relations
    Act, Iowa Code chapter 20. The amendments ended payroll deductions
    for union dues and narrowed the scope of mandatory collective
    bargaining topics for bargaining units comprised of less than thirty
    percent “public safety employees,” defined to include most police officers
    and firefighters. The new classifications result in many public employees
    losing significant statutory bargaining rights compared to other public
    employees with arguably similar jobs.           A public employee union and
    several of its members filed this action against the State of Iowa and the
    Public Employment Relations Board (PERB) seeking injunctive and
    declaratory relief. The plaintiffs allege the amendments violate the equal
    protection clause of the Iowa Constitution and violate their right to
    freedom of association. The district court granted the defendants’ motion
    for summary judgment dismissing the action, and we retained the
    plaintiffs’ appeal.
    Our role is to decide whether constitutional lines were crossed, not
    to sit as a superlegislature rethinking policy choices of the elected
    branches.        We   conclude   the    2017     amendments        withstand     the
    constitutional    challenges.     The       plaintiffs   concede    there   is   no
    constitutional right to public-sector collective bargaining or payroll
    deductions. The parties agree the equal protection claims are reviewed
    under the rational basis test. The legislature could reasonably conclude
    that the goal of keeping labor peace with unions comprised of at least
    thirty percent public safety employees, and the greater risks faced by
    emergency first responders, justified the classification.           We hold the
    3
    legislative classifications are not so overinclusive or underinclusive as to
    be unconstitutional under our highly deferential standard of review. We
    further hold the amendments do not violate constitutional rights of
    freedom of association. Public employees remain free to belong to the
    same unions.         Accordingly, we affirm the district court’s summary
    judgment.
    I. Background Facts and Proceedings.
    We begin by reviewing the statute in place before the 2017
    amendments to put the constitutional challenges in context.1 In 1974,
    after public employees engaged in multiple strikes, the Iowa legislature
    enacted the Public Employment Relations Act (PERA), codified at Iowa
    Code chapter 20. See generally Waterloo Educ. Ass’n v. Iowa Pub. Emp’t
    Relations Bd., 
    740 N.W.2d 418
    (Iowa 2007) (detailing the history of public
    sector collective bargaining). PERA sought to create an orderly system of
    collective bargaining for public employees by establishing rules and
    procedures and by prohibiting strikes.2               Iowa Code §§ 20.6, .9, .10
    (2017). PERA permitted, but did not require, public employees to join a
    public employee organization (union).3 
    Id. § 20.8.
    Employees could vote
    to select a union to represent them. 
    Id. An employee
    who joined a union
    had the option to pay dues through automatic payroll deductions. 
    Id. § 20.9;
    id. §§ 70A.17A, 
    .19.
    1The plaintiffs do not challenge the payroll deduction prohibition, a provision we
    hold withstands constitutional scrutiny in Iowa State Education Ass’n, ___ N.W.2d at
    ___.
    2As of 2010, only one-half of the states had a comprehensive collective
    bargaining statute. See Marilyn Raskin-Ortiz & Emily Martin, Bargaining in States
    Without Public Sector Collective Bargaining Legislation, ABA Labor & Emp’t Law Section
    Subcommittee Report, at 1 (2010) [hereinafter Raskin-Ortiz & Martin].
    http://apps.americanbar.org/labor/slgbcomm/mw/papers/2010/home.shtml.
    3PERA   defines unions as “employee organizations.” Iowa Code § 20.3(4).
    4
    Once employees selected a union, PERA required the union and
    public employer to bargain in good faith on these topics:
    wages, hours, vacations, insurance, holidays, leaves of
    absence,     shift differentials, overtime   compensation,
    supplemental pay, seniority, transfer procedures, job
    classifications, health and safety matters, evaluation
    procedures, procedures for staff reduction, in-service
    training and other matters mutually agreed upon.
    
    Id. § 20.9.
    If a public employer and union were unable to reach an agreement
    on these mandatory topics, PERA established a procedure for resolving
    the impasse through mediation and binding arbitration.           
    Id. §§ 20.20,
    .22. If an impasse reached arbitration, each party submitted a final offer
    to an arbitrator. 
    Id. § 20.22(3).
    The arbitrator was required to consider
    the following factors:
    a. Past collective bargaining contracts between the
    parties including the bargaining that led up to such
    contracts.
    b. Comparison of wages, hours and conditions of
    employment of the involved public employees with those of
    other public employees doing comparable work, giving
    consideration to factors peculiar to the area and the
    classifications involved.
    c. The interests and welfare of the public, the ability of
    the public employer to finance economic adjustments and
    the effect of such adjustments on the normal standard of
    services.
    d. The power of the public employer to levy taxes and
    appropriate funds for the conduct of its operations.
    
    Id. § 20.22(7).
    After considering the proposals and the relevant factors,
    the arbitrator “select[ed] . . . the most reasonable offer, in the arbitrator’s
    judgment, of the final offers on each impasse item submitted by the
    parties.” 
    Id. § 20.22(9).
          PERA imposed harsh penalties for engaging in strikes.                 
    Id. §§ 20.10(3)(h),
    .12.     PERA authorized courts to issue injunctions to
    5
    restrain any actual or imminently threatened strike.                    
    Id. § 20.12(3).
    Anyone who failed to comply with an injunction faced contempt
    sanctions and punishment including up to six months in jail, fines, and
    automatic discharge from employment for an employee, or immediate
    decertification as a union. 
    Id. § 20.12(3)–(6).
    See generally Iowa Code
    ch. 665 (contempt). There have been no strikes by public employees in
    Iowa since PERA’s enactment in 1974.                The University of Iowa Labor
    Center, “To Promote Harmonious and Cooperative Relationships”: A Brief
    History of Public Sector Collective Bargaining in Iowa, 1966 to 2016, 7
    (2016),      https://www.iowaaflcio.org/system/files/history_of_ia_public_
    sector_bargaining.pdf.
    In February 2017, the Iowa legislature enacted House File 291,
    amending PERA.         2017 Iowa Acts ch. 2 (codified in part at Iowa Code
    ch. 20 (2018)). On February 17, the Governor signed House File 291 into
    law.      The amendments altered the scope of mandatory collective
    bargaining and arbitration and eliminated payroll deductions for all
    union dues. See generally Iowa Code ch. 20.
    Collective bargaining laws for public employees vary by state, with
    some      states   allowing    collective   bargaining      rights   for   police    and
    firefighters not shared by other public employees.4 House File 291 gave
    4As  of 2018, twenty-eight states require collective bargaining. Eric J. Brunner &
    Andrew Ju, State Collective Bargaining Laws and Public-Sector Pay, 72 ILR Rev. 480,
    487 (2019) [hereinafter Brunner & Ju]. Fifteen states allow state employers to decide
    whether or not to collectively bargain. 
    Id. The range
    of topics public employees are able
    to bargain over varies from state to state, as does the employees’ ability to compel
    arbitration in the event of an impasse. Raskin-Ortiz & Martin at 4–10.
    Of the states that require or permit collective bargaining, Alabama, Delaware,
    Idaho, Kentucky, Oklahoma, Rhode Island, and Wyoming have separate bargaining
    rights for police officers and/or firefighters.     
    Id. Three states—North
    Carolina,
    South Carolina, and Virginia—prohibit collective bargaining for any public employees.
    Brunner & Ju at 487. Arizona and Texas limit collective bargaining to police officers
    and firefighters, while Georgia limits collective bargaining rights to firefighters alone.
    
    Id. 6 public
    employees different bargaining rights depending on whether they
    are part of a bargaining unit with at least thirty percent “public safety
    employees.” Public safety employees are defined to include
    a. A sheriff’s regular deputy.
    b. A marshal or police officer of a city, township, or
    special-purpose district or authority who is a member of a
    paid police department.
    c. A member, except a non-peace officer member, of
    the division of state patrol, narcotics enforcement, state fire
    marshal, or criminal investigation, including but not limited
    to a gaming enforcement officer, who has been duly
    appointed by the department of public safety in accordance
    with section 80.15.
    d. A conservation officer or park ranger as authorized
    by section 456A.13.
    e. A permanent or full-time fire fighter of a city,
    township, or special-purpose district or authority who is a
    member of a paid fire department.
    f. A peace officer designated by the department of
    transportation under section 321.477 who is subject to
    mandated law enforcement training.
    Iowa Code § 20.3(11). Not included in the statutory definition of public
    safety employees are university police, probation or parole officers, fraud
    bureau investigation officers, airport firefighters, corrections officers, and
    emergency medical service providers.
    If a union represents a bargaining unit with at least thirty percent
    public safety employees, it may exercise broad bargaining rights on
    behalf of all of its members, including those who are not public safety
    employees.    
    Id. § 20.9(1).
      The union continues to have the right to
    bargain and, in the event of an impasse, the right to mediate and
    arbitrate with public employers on the following mandatory topics:
    wages, hours, vacations, insurance, holidays, leaves of
    absence,     shift differentials, overtime compensation,
    supplemental pay, seniority, transfer procedures, job
    classifications, health and safety matters, evaluation
    procedures, procedures for staff reduction, in-service
    7
    training, grievance procedures for resolving any questions
    arising under the agreement, and other matters mutually
    agreed upon.
    
    Id. In sharp
    contrast, for unions representing a bargaining unit with
    less than thirty percent public safety employees, House File 291 limited
    mandatory bargaining and, in the event of an impasse, mediation and
    arbitration, to the subject of “base wages and other matters mutually
    agreed upon.” Id.5 The amendment specifies that these subjects “shall
    be interpreted narrowly and restrictively.”          
    Id. The amendments
    allow
    public employers to voluntarily bargain over formerly mandatory topics.
    Longevity pay, shift differentials, and overtime compensation are still
    permissive subjects of bargaining.          See Iowa Code § 20.9(1), (3).        This
    leaves it up to the state or local government or school board whether to
    negotiate on these matters.        See Waterloo Educ. 
    Ass’n, 740 N.W.2d at 421
    . Public employees, like all citizens in our state, have the ability to
    affect those decisions. A unit of state government, a municipality, or a
    school board that wishes to negotiate on these matters with the employee
    organization is free to do so.          But the union may not bargain over
    “insurance, leaves of absence for political activities, supplemental pay,
    transfer    procedures,     evaluation     procedures,      procedures     for   staff
    reduction, and subcontracting public services.” Iowa Code § 20.9(3).
    During arbitration with a bargaining unit consisting of at least
    thirty percent public safety employees, the arbitrator considers most of
    the same factors as before the 2017 amendments.                        Compare 
    id. 5A 2010
    report found that a number of states limit mandatory binding
    arbitration to certain classes of employees, including police and firefighters. See
    Raskin-Ortiz & Martin at 11–12 (noting Alaska, California, Illinois, Michigan, Montana,
    Nevada, New Jersey, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island,
    Washington, Wisconsin, and Wyoming limited compulsory arbitration to certain classes
    of employees including firefighters and/or police officers).
    8
    § 20.22(7) (2018), with 
    id. § 20.22(7)
    (2017). The only change House File
    291 made is that the arbitrator may no longer consider “[t]he power of
    the public employer to levy taxes and appropriate funds for the conduct
    of its operations.” 
    Id. § 20.22(7)(d)
    (2017).
    For all other public employee units, the arbitrator, in reaching a
    final decision, must consider
    (1) Comparison of base wages, hours, and conditions
    of employment of the involved public employees with those of
    other public employees doing comparable work, giving
    consideration to factors peculiar to the area and the
    classifications involved. To the extent adequate, applicable
    data is available, the arbitrator shall also compare base
    wages, hours, and conditions of employment of the involved
    public employees with those of private sector employees
    doing comparable work, giving consideration to factors
    peculiar to the area and the classifications involved.
    (2) The interests and welfare of the public.
    (3) The financial ability of the employer to meet the
    cost of an offer in light of the current economic conditions of
    the public employer. The arbitrator shall give substantial
    weight to evidence that the public employer’s authority to
    utilize funds is restricted to special purposes or
    circumstances by state or federal law, rules, regulations, or
    grant requirements.
    Iowa Code § 20.22(8)(a) (2018). The arbitrator shall not consider,
    (1) Past collective bargaining agreements between the
    parties or bargaining that led to such agreements.
    (2) The public employer’s ability to fund an award
    through the increase or imposition of new taxes, fees, or
    charges, or to develop other sources of revenues.
    
    Id. § 20.22(8)(b).
    Regardless of the makeup of the bargaining unit, the arbitrator
    must still determine the most reasonable offer.             
    Id. § 20.22(10)(a).
    However, if the bargaining unit is made up of less than thirty percent
    public safety employees and there is an impasse on base wages, the
    arbitrator is prohibited from selecting an offer, even if it is reasonable,
    9
    that provides for an increase in base wages that would exceed in any
    year the increase in a specified consumer price index or three percent,
    whichever is less. 
    Id. § 20.22(10)(b)(1).
    House File 291 also eliminated the right of all public employees,
    including public safety employees, to bargain over union dues checkoffs
    and to pay union dues through payroll deductions.            
    Id. § 20.9(3);
    id.
    § 70A.19. 
        Public employees may still make other payments through
    payroll     deductions,    such     as   insurance    premiums,       charitable
    contributions, and dues in professional associations.            
    Id. §§ 70A.15A,
    .17, .17A.
    The plaintiffs in this case are a public employee union and four of
    its members.      Iowa Council 61 of the American Federation of State,
    County and Municipal Employees (AFSCME) represents public employees
    throughout Iowa.          The individual plaintiffs, Johnathan Good, a
    corrections officer; Ryan De Vries, a police officer; Terra Kinney, a motor
    vehicle enforcement officer; and Susan Baker, a drafter, are public
    employees and members of AFSCME. All of AFSCME’s bargaining units
    in Iowa are comprised of less than thirty percent public safety employees.
    House File 291 restricted collective bargaining rights for every AFSCME
    bargaining unit, including those with public safety employees.
    In February 2017, the plaintiffs filed this civil action for declaratory
    and injunctive relief.     The defendants, the State of Iowa and PERB,
    answered, and the parties filed cross-motions for summary judgment.
    The plaintiffs’ motion for summary judgment argued House File 291
    violates article I, section 6, the equal protection clause of the Iowa
    Constitution    because     it   unconstitutionally   deprives    some    public
    employees of rights guaranteed to other, similarly situated public
    employees. The plaintiffs also argued that House File 291 deprives all
    10
    AFSCME-represented state public safety employees of the right to
    meaningful collective bargaining, violating their fundamental right to
    freedom of association, and the court should therefore evaluate the law
    under a strict scrutiny standard.
    The district court denied the plaintiffs’ motion for summary
    judgment and granted the defendants’ motion for summary judgment.
    The court rejected the plaintiffs’ freedom of association argument. With
    regard to the equal protection challenge, the court applied the rational
    basis test and ruled that House File 291 is constitutional.     The court
    concluded that while the amendments distinguish between similarly
    situated people, the State’s desire to avoid public safety employee strikes
    was a realistically conceivable purpose and was based in fact, and the
    relationship between the classification and the purpose was not so weak
    as to be viewed as arbitrary.
    The plaintiffs appealed, and we retained their appeal.
    II. Scope of Review.
    “We review summary judgment rulings for correction of errors at
    law.” Baker v. City of Iowa City, 
    867 N.W.2d 44
    , 51 (Iowa 2015). “We
    view the entire record in the light most favorable to the nonmoving party,
    making every legitimate inference that the evidence in the record will
    support in favor of the nonmoving party.” Bass v. J.C. Penney Co., 
    880 N.W.2d 751
    , 755 (Iowa 2016).
    We review constitutional claims de novo.       State v. Groves, 
    742 N.W.2d 90
    , 92 (Iowa 2007).       Our standard of review with regard to
    constitutional challenges to statutes is well established.
    We review constitutional challenges to a statute de novo. In
    doing so, we must remember that statutes are cloaked with a
    presumption of constitutionality. The challenger bears a
    heavy burden, because it must prove the unconstitutionality
    11
    beyond a reasonable doubt. Moreover, “the challenger must
    refute every reasonable basis upon which the statute could
    be found to be constitutional.” Furthermore, if the statute is
    capable of being construed in more than one manner, one of
    which is constitutional, we must adopt that construction.
    State v. Seering, 
    701 N.W.2d 655
    , 661 (Iowa 2005) (quoting State v.
    Hernandez-Lopez, 
    639 N.W.2d 226
    , 233 (Iowa 2002)), superseded by
    statute on other grounds, 2009 Iowa Acts ch. 119, § 3 (codified at Iowa
    Code § 692A.103 (Supp. 2009)), as recognized in In re T.H., 
    913 N.W.2d 578
    , 587–88 (Iowa 2018).
    III. Analysis.
    The plaintiffs argue that House File 291 amendments to Iowa Code
    chapter 20 fail rational basis scrutiny under article I, section 6 of the
    equal protection clause of the Iowa Constitution.          Additionally, the
    plaintiffs argue that the amendments violate their right to freedom of
    association. We address each challenge in turn.
    A. Iowa’s Equal Protection Analysis.          The plaintiffs argue that
    the amendments to Iowa Code chapter 20 violate their right to equal
    protection under the Iowa Constitution because the defendants’ asserted
    rationale is unsupported by the legislative facts and further because
    House    File   291’s   extreme      degrees   of    overinclusiveness   and
    underinclusiveness render the amendments arbitrary. We conclude the
    plaintiffs’ equal protection challenge fails because the plaintiffs cannot
    meet their burden of refuting every reasonable basis upon which the
    classification could be sustained.
    Article I, section 6 of the Iowa Constitution is referred to as the
    equal protection clause and provides, “All laws of a general nature shall
    have a uniform operation; the general assembly shall not grant to any
    citizen, or class of citizens, privileges or immunities, which, upon the
    12
    same terms shall not equally belong to all citizens.” Iowa Const. art. I,
    § 6.
    Iowa’s equal protection clause “is essentially a direction that all
    persons similarly situated should be treated alike.” Varnum v. Brien, 
    763 N.W.2d 862
    , 878–79 (Iowa 2009) (quoting Racing Ass’n of Cent. Iowa v.
    Fitzgerald (RACI), 
    675 N.W.2d 1
    , 7 (Iowa 2004)). In Varnum, we noted,
    Even in the zealous protection of the constitution’s
    mandate of equal protection, courts must give respect to the
    legislative process and presume its enactments are
    constitutional. We understand that Iowa’s tripartite system
    of government requires the legislature to make difficult policy
    choices, including distributing benefits and burdens
    amongst the citizens of Iowa.        In this process, some
    classifications and barriers are inevitable. As a result,
    courts pay deference to legislative decisions when called
    upon to determine whether the Iowa Constitution’s mandate
    of equality has been violated by legislative action. More
    specifically, when evaluating challenges based on the equal
    protection clause, our deference to legislative policy-making
    is primarily manifested in the level of scrutiny we apply to
    review legislative action.
    
    Id. at 879.
    To prove an equal protection violation, the plaintiffs must first
    establish that the statute treats similarly situated individuals differently.
    McQuistion v. City of Clinton, 
    872 N.W.2d 817
    , 830 (Iowa 2015).
    Generally, however, determining whether classifications involve similarly
    situated      individuals   is   intertwined   with   whether   the   identified
    classification has any rational basis. State v. Dudley, 
    766 N.W.2d 606
    ,
    616 (Iowa 2009).
    Here, House File 291 distinguishes first between public safety
    employees and all other public employees, and second between
    bargaining units comprised of at least thirty percent public safety
    employees and all other bargaining units. The parties agree that rational
    basis review applies to the plaintiffs’ equal protection challenge.
    13
    “The rational basis test is a ‘very deferential standard.’ ” NextEra
    Energy Res. LLC v. Iowa Utils. Bd., 
    815 N.W.2d 30
    , 46 (Iowa 2012)
    (quoting 
    Varnum, 763 N.W.2d at 879
    ). Plaintiffs bear “the heavy burden
    of showing the statute unconstitutional and must negate every
    reasonable basis upon which the classification may be sustained.” 
    Id. (quoting Bierkamp
    v. Rogers, 
    293 N.W.2d 577
    , 579–80 (Iowa 1980)).
    As we noted in Varnum,
    The rational basis test defers to the legislature’s prerogative
    to make policy decisions by requiring only a plausible policy
    justification, mere rationality of the facts underlying the
    decision and, again, a merely rational relationship between
    the classification and the policy 
    justification. 763 N.W.2d at 879
    .
    “We will not declare something unconstitutional under the
    rational-basis test unless it ‘clearly, palpably, and without doubt
    infringe[s] upon the constitution.’ ” Residential & Agric. Advisory Comm.,
    LLC, v. Dyersville City Council, 
    888 N.W.2d 24
    , 50 (Iowa 2016) (alteration
    in original) (quoting 
    RACI, 675 N.W.2d at 8
    ). Nevertheless, the rational
    basis standard, while deferential, “ ‘is not a toothless one’ in Iowa.”
    
    Varnum, 763 N.W.2d at 879
    (quoting 
    RACI, 675 N.W.2d at 9
    ).          “[T]his
    court engages in a meaningful review of all legislation challenged on
    equal protection grounds by applying the rational basis test to the facts
    of each case.” 
    Id. We use
    a three-part analysis when reviewing challenges to a
    statute under article I, section 6.     “First, we must determine whether
    there was a valid, ‘realistically conceivable’ purpose that served a
    legitimate government interest.”      Residential & Agric. Advisory Comm.,
    
    LLC, 888 N.W.2d at 50
    (quoting 
    McQuistion, 872 N.W.2d at 831
    ). “To be
    realistically conceivable, the [statute] cannot be ‘so overinclusive and
    14
    underinclusive as to be irrational.’ ” 
    Id. (quoting Horsfield
    Materials, Inc.
    v. City of Dyersville, 
    834 N.W.2d 444
    , 459 (Iowa 2013)). “Next, the court
    must evaluate whether the ‘reason has a basis in fact.’ ” 
    McQuistion, 872 N.W.2d at 831
    (quoting 
    RACI, 675 N.W.2d at 7
    –8). “[A]lthough ‘actual
    proof of an asserted justification [i]s not necessary, . . . the court w[ill]
    not simply accept it at face value and w[ill] examine it to determine
    whether it [i]s credible as opposed to specious.”       LSCP, LLLP, v. Kay-
    Decker, 
    861 N.W.2d 846
    , 860 (Iowa 2015) (alteration in original) (quoting
    Qwest Corp. v. Iowa State Bd. of Tax Review, 
    829 N.W.2d 550
    , 560 (Iowa
    2013)); see also King v. State, 
    818 N.W.2d 1
    , 30 (Iowa 2012) (“[W]e have
    continued to uphold legislative classifications based on judgments the
    legislature could have made, without requiring evidence or ‘proof’ in
    either a traditional or a nontraditional sense.” (Emphasis added.)).
    “Legislative facts are relevant in deciding these constitutional
    issues because courts must normally analyze ‘whether there exist
    circumstances which constitutionally either legitimate the exercise of
    legislative power or substantiate the rationality of the legislative
    product.’ ”   
    Varnum, 763 N.W.2d at 881
    (quoting 2 John W. Strong,
    McCormick on Evidence § 328, at 370 (5th ed. 1999)). Legislative facts
    “may be presented either formally or informally” and consist of “social,
    economic, political, or scientific facts.”       
    Id. (first quoting
    Welsh v.
    Branstad, 
    470 N.W.2d 644
    , 648 (Iowa 1991)).
    The plaintiffs ask that if we find House File 291 to be
    constitutional, we reevaluate our rational basis standard. The plaintiffs
    argue that courts should not be able to rely on unstated rationales in
    upholding a statute.    We disagree.       As the foregoing authorities make
    clear, we are not limited to considering only the facts stated on the
    record during a legislative debate.
    15
    Finally, “we evaluate whether the relationship between the
    classification and the purpose for the classification ‘is so weak that the
    classification must be viewed as arbitrary.’ ”        Residential & Agric.
    Advisory Comm., 
    LLC, 888 N.W.2d at 50
    (quoting 
    McQuistion, 872 N.W.2d at 831
    ).
    As we recently reiterated in unanimously rejecting a federal equal
    protection challenge, courts have only a limited role in rational basis
    review,
    We many times have said, and but weeks ago
    repeated, that rational-basis review in equal protection
    analysis “is not a license for courts to judge the wisdom,
    fairness, or logic of legislative choices.” Nor does it authorize
    “the judiciary [to] sit as a superlegislature to judge the
    wisdom or desirability of legislative policy determinations
    made in areas that neither affect fundamental rights nor
    proceed along suspect lines.”            For these reasons, a
    classification neither involving fundamental rights nor
    proceeding along suspect lines is accorded a strong
    presumption of validity. Such a classification cannot run
    afoul of the Equal Protection Clause if there is a rational
    relationship between the disparity of treatment and some
    legitimate governmental purpose. Further, a legislature that
    creates these categories need not “actually articulate at any
    time the purpose or rationale supporting its classification.”
    Instead, a classification “must be upheld against equal
    protection challenge if there is any reasonably conceivable
    state of facts that could provide a rational basis for the
    classification.”
    
    Baker, 867 N.W.2d at 57
    (alteration in original) (quoting Heller v. Doe ex
    rel. Doe, 
    509 U.S. 312
    , 319–21, 
    113 S. Ct. 2637
    , 2642 (1993)).
    Our role is similarly limited under the Iowa Constitution.          See
    Qwest 
    Corp., 829 N.W.2d at 560
    (“[In RACI,] we made clear that actual
    proof of an asserted justification was not necessary, but the court would
    not simply accept it at face value and would examine it to determine
    whether it was credible as opposed to specious.”); 
    King, 818 N.W.2d at 30
    (“RACI has not been the death knell for traditional rational basis review.
    16
    Since RACI was decided, we have continued to uphold legislative
    classifications based on judgments the legislature could have made,
    without    requiring     evidence    or   ‘proof’   in    either   a   traditional   or
    nontraditional sense.”).
    The district court found that the valid, realistically conceivable
    purpose for House File 291 was a concern for labor peace, especially
    among public safety employees.            The State also asserts that another
    purpose was the unique health and safety concerns public safety
    employees face. We consider each justification.
    1. Labor peace rationale.           The plaintiffs argue that House File
    291’s legislative history belies the labor peace justification because no
    one mentioned this justification during the recorded legislative debates
    as a reason for amending PERA. The plaintiffs also argue that House File
    291’s definition of public safety employees includes employees who
    would not be crucial to maintaining labor peace, such as park rangers,
    DOT motor vehicle enforcement officers, fire marshals, and gaming
    enforcement officers, while excluding employees who may be necessary to
    maintain peace during a strike, including university police officers and
    other emergency medical service providers. The plaintiffs note that police
    officers   already     routinely    enforce    laws      against   union    members,
    neighbors, friends, and even other police officers. Finally, the plaintiffs
    argue that the labor peace rationale is belied by the fact that there has
    not been a strike since PERA was enacted in 1974.
    The plaintiffs also argue that even if a labor peace rationale could
    support House File 291, the law is so overinclusive and underinclusive
    “it cannot [reasonably] be said to . . . further that goal.” LSCP, 
    LLLP, 861 N.W.2d at 861
    (alterations in original) (quoting 
    Bierkamp, 293 N.W.2d at 584
    ). The plaintiffs contend that the thirty percent threshold ignores the
    17
    bargaining unit’s size, and some cities could have entire police forces
    that do not have expanded bargaining rights.         These public safety
    employees would not have the same incentive to avoid strikes.          The
    plaintiffs give examples of the effect House File 291 has on public safety
    employees.    For example, plaintiffs identify a number of populous
    counties including Tama (population 17,337), Fayette (population
    20,257), Delaware (population 17,403), Dubuque (population 97,125),
    Harrison (population 14,265), and Black Hawk (population 133,455) in
    which sheriff’s deputies are unable to exercise the broad collective
    bargaining rights guaranteed to public safety employees in House File
    291 because they are in bargaining units made up of less than thirty
    percent public safety employees.         Yet deputies from comparably
    populated counties such as Floyd (population 15,960), Woodbury
    (population 102,782), Cedar (population 18,340), Webster (population
    37,071), and Washington (population 22,247) are able to exercise broad
    collective bargaining rights under House File 291. Plaintiffs argue this
    extreme arbitrariness is not justified by any of the purported rationales
    of House File 291.
    The defendants argue that the thirty percent threshold is rational
    because the risk from labor unrest is materially greater in a unit with a
    larger percentage of public safety employees. The defendants argue this
    thirty percent threshold had another rationale, protecting the public fisc.
    The thirty percent threshold also provides greater assurance that in the
    event of labor unrest there would be a critical mass of public safety
    employees available to enforce the law and preserve public safety.
    The defendants rely on Wisconsin Education Ass’n Council v.
    Walker, in which the United States Court of Appeals for the Seventh
    Circuit rejected a public employee challenge to recent amendments to the
    18
    Wisconsin public collective bargaining statute. 
    705 F.3d 640
    (7th Cir.
    2013).   The Seventh Circuit held there was a rational basis for the
    amendments, stating,
    [E]xperience has borne out the state’s fears: in the wake of
    Act 10’s proposal and passage, thousands descended on the
    state capital in protest and numerous teachers organized a
    sick-out through their unions, forcing schools to close, while
    the state avoided the large societal cost of immediate labor
    unrest among public safety employees. Wisconsin was free
    to determine that the costs of potential labor unrest
    exceeded the benefits of restricting the public safety unions.
    
    Id. at 655.
    The plaintiffs argue Walker is unpersuasive because Wisconsin’s
    collective bargaining law is fundamentally different than Iowa’s.      The
    Wisconsin statute treats all safety employees alike, regardless of their
    unit placement, while restricting the bargaining rights of all general
    public employees.       The Wisconsin statute also has less onerous
    antistrike penalties.   Additionally, Wisconsin’s statute was evaluated
    under a federal equal protection framework, while our court applies a
    more stringent rational basis “with teeth” standard of review.
    We hold that maintaining labor peace is a valid, realistically
    conceivable purpose and has a basis in fact.        The legislature could
    reasonably have found that giving public safety employees expanded
    bargaining rights would discourage them from engaging in strikes or
    sick-outs. It is true that there have been no strikes of public employees
    in Iowa since PERA was enacted in 1974. But it is also true that until
    2017 there had never been legislation substantially curtailing the
    collective bargaining rights of Iowa public employees. Iowa legislators in
    2017 could consider what happened several years earlier in Wisconsin to
    see that labor unrests and strikes may result when legislative
    amendments curtail public union bargaining rights.       Wisconsin public
    19
    employees staged mass protests in 2011, occupying the rotunda of the
    state capitol with great media fanfare. See 
    Walker, 705 F.3d at 642
    –43,
    655; Wis. Right to Life State Political Action Comm. v. Barland, 
    664 F.3d 139
    , 144–45 (7th Cir. 2011) (discussing the political unrest occurring in
    Wisconsin leading up to and after the collective bargaining amendments).
    See generally Madison Teachers, Inc. v. Walker, 
    851 N.W.2d 337
    (Wis.
    2014) (rejecting union challenge to Wisconsin’s amended collective
    bargaining statute).
    The district court correctly concluded that Iowa legislators could
    take note of that Wisconsin experience. The district court also carefully
    considered Iowa’s history of labor peace in the broader context of
    national developments.
    Even assuming a strike is improbable, reasonable
    legislators could also be rationally concerned that public
    employees who experience a reduction in collective
    bargaining rights will be more likely to experience low morale
    and labor unrest. Labor unrest short of a strike could
    reasonably be considered by legislators to contribute to
    instability in the public sector workforce. Other jurisdictions
    have experienced incidents of civil disobedience through
    sickouts by public employees and “Blue Flu” by law
    enforcement in response to less desirable terms and
    conditions of employment. . . . The State cites numerous
    news articles about police officers in New York City,
    Memphis, Tennessee, Selma, Alabama and East Orange,
    New Jersey calling in sick in large numbers in order to
    protest issues such as unsafe conditions, low pay, and lack
    of benefits.
    We agree with the district court that legislative facts readily
    available to Iowa lawmakers support concerns that labor unrest among
    police could undermine public safety, if not through strikes, then
    through reduced initiative or “blue flu.”   Historically, police officers in
    other states have used strategies such as the blue flu to protest labor
    conditions and policy changes. See generally Baker v. City of Detroit, 483
    
    20 F. Supp. 930
    , 943 (E.D. Mich. 1979) (discussing white officers’ use of a
    blue flu and ticket strike to oppose the police department’s desegregation
    efforts in 1959–60); 30 Richard A. Lord, Williston on Contracts § 77:92, at
    578 (4th ed. 2004) (“The length of a work stoppage may be temporary, as
    in the case of work slow downs, increasing call-ins by ‘sick’ workers or
    ‘blue flu,’ or a strike may persist for years.”); Illya Lichtenberg, Police
    Discretion and Traffic Enforcement: A Government of Men?, 50 Clev.
    St. L. Rev. 425, 444–45 (2003) (discussing how police officers have used
    the blue flu as a bargaining strategy). The district court aptly observed
    that in Iowa “[t]he potential for ‘Blue Flu’ or some other exhibition of
    labor unrest short of a strike is realistically conceivable.”
    Against that backdrop, Iowa legislators in 2017 could rationally
    decide to extend more beneficial negotiating rights to bargaining units
    comprised of at least thirty percent public safety employees. The public
    safety rationale need not be voiced during the floor debates over House
    File 291 or proven with evidence. See Qwest 
    Corp., 829 N.W.2d at 560
    .
    Iowa legislators individually and collectively can have multiple or mixed
    motives.      Courts applying rational basis review do not take testimony
    from senators or representatives. See Rhoades v. State, 
    880 N.W.2d 431
    ,
    447 (Iowa 2016) (“In considering the statute in its full context, we do not
    give weight to the affidavit submitted by Rhoades from a former state
    legislator.    On occasion, we have stated that a court may consider
    affidavits     from   legislators   describing   the   factual   background   of
    legislation.    We have consistently, however, held that affidavits from
    legislators or former legislators are inadmissible on the subject of
    legislative intent. We do not depart from our established precedent in
    this case.” (Citations omitted.)).
    21
    The Fourth Circuit, in rejecting a constitutional challenge to
    legislation ending payroll deductions for union dues, aptly quoted Justice
    Scalia’s warning against efforts to ascertain the subjective intent of a
    group of legislators.
    [D]iscerning the subjective motivation of those enacting the
    statute is, to be honest, almost always an impossible task.
    The number of possible motivations, to begin with, is not
    binary, or indeed finite. . . . [The legislator] may have
    thought the bill would provide jobs for his district, or may
    have wanted to make amends with a faction of his party he
    had alienated on another vote, or he may have been a close
    friend of the bill’s sponsor, or he may have been repaying a
    favor he owed the Majority Leader, or he may have hoped the
    Governor would appreciate his vote and make a fundraising
    appearance for him, or he may have been pressured to vote
    for a bill he disliked by a wealthy contributor or by a flood of
    constituent mail, or he may have been seeking favorable
    publicity, or he may have been reluctant to hurt the feelings
    of a loyal staff member who worked on the bill, or he may
    have been settling an old score with a legislator who opposed
    the bill, or he may have been mad at his wife who opposed
    the bill, or he may have been intoxicated and utterly
    unmotivated when the vote was called, or he may have
    accidentally voted “yes” instead of “no,” or, of course, he may
    have had (and very likely did have) a combination of some of
    the above and many other motivations. To look for the sole
    purpose of even a single legislator is probably to look for
    something that does not exist.
    S.C. Educ. Ass’n v. Campbell, 
    883 F.2d 1251
    , 1261 (4th Cir. 1989)
    (alteration in original) (quoting Edwards v. Aguillard, 
    482 U.S. 578
    , 636–
    37, 
    107 S. Ct. 2573
    , 2605 (1987) (Scalia, J., dissenting)).
    Our rational basis review is purposefully limited and does not
    include evidentiary fact-finding on the motives of individual legislators or
    validity of the labor peace rationale. Qwest 
    Corp., 829 N.W.2d at 560
    .
    A State, moreover, has no obligation to produce
    evidence to sustain the rationality of a statutory
    classification. “[A] legislative choice is not subject to
    courtroom factfinding and may be based on rational
    speculation unsupported by evidence or empirical data.” A
    statute is presumed constitutional and “[t]he burden is on
    the one attacking the legislative arrangement to negative
    22
    every conceivable basis which might support it,” whether or
    not the basis has a foundation in the record. Finally, courts
    are compelled under rational-basis review to accept a
    legislature’s generalizations even when there is an imperfect
    fit between means and ends. A classification does not fail
    rational-basis review because it “is not made with
    mathematical nicety or because in practice it results in some
    inequality.” “The problems of government are practical ones
    and may justify, if they do not require, rough
    accommodations—illogical, it may be, and unscientific.”
    
    Baker, 867 N.W.2d at 57
    (alterations in original) (quoting 
    Heller, 509 U.S. at 319
    –21, 113 S. Ct. at 2643); see also FCC v. Beach Commc’ns, Inc.,
    
    508 U.S. 307
    , 315, 
    113 S. Ct. 2096
    , 2102 (1993) ([B]ecause we never
    require a legislature to articulate its reasons for enacting a statute, it is
    entirely irrelevant for constitutional purposes whether the conceived
    reason   for   the   challenged    distinction   actually   motivated    the
    legislature. . . . ‘Only by faithful adherence to this guiding principle of
    judicial review of legislation is it possible to preserve to the legislative
    branch its rightful independence and its ability to function.’ ” (quoting
    Lehnhausen v. Lake Shore Auto Parts Co., 
    410 U.S. 356
    , 365, 
    93 S. Ct. 1001
    , 1006 (1973)); see also 
    RACI, 675 N.W.2d at 7
    n.3 (discussing what
    makes a justification plausible and credible as opposed to merely
    specious).
    We agree with the district court’s well-reasoned ruling applying our
    court’s three-part test.
    Potential liability resulting from a reduction of public
    sector collective bargaining rights could reasonably create a
    rationally credible concern regarding the effectiveness of law
    enforcement in the event of an emergency. A reasonable
    legislature could rationally conclude it is necessary to
    preserve the rights of collective bargaining units of at least
    thirty percent Public Safety Employees [(PSE)] in order to
    preserve a reliable corps of law enforcement authorities to
    deal with emergencies.        The legislature could rationally
    establish as a priority the preservation of a satisfied, well-
    trained and experienced corps of [PSE]. The purpose of the
    classification is realistically conceivable. It has a credible
    23
    basis in fact. The relationship between the classification and
    the purpose of retaining a stable public safety force is not so
    weak as to be arbitrary.
    Applying the rigorous rational basis test of [article I,
    section 6] of the Iowa Constitution, the Court concludes
    AFSCME failed to negate every reasonable basis for the
    classification that might support disparate treatment
    between units thirty percent or more PSEs and units of less
    than thirty percent PSEs. There is a rational basis for this
    legislative   classification.      The    presumption        of
    constitutionality prevails. H.F. 291 does not violate the
    Equal Protection Clause of the Iowa Constitution.
    (Citations omitted.) We affirm on that basis. We turn next to the health
    and safety rationale.
    2. Health and safety rationale.          The main rationale advanced
    during the legislative debates on House File 291 centered on the health
    and safety risks that public safety employees face on the job. Because of
    these risks, legislators determined that public safety employees should
    retain broader bargaining rights, including on topics directly relating to
    their health and safety, such as insurance.              This rationale was not
    reached in the district court ruling, but provides another ground for
    upholding the classifications in House File 291.
    We note that on November 2, 2016, just over three months before
    the enactment of House File 291, two police officers were fatally shot in
    their squad cars in Des Moines and Urbandale, respectively.6 And the
    preceding summer, five police officers were gunned down in Dallas,
    Texas,7 and another three officers were shot dead two weeks later in
    6KathyA. Bolten, Police ‘Heartbroken’ After Ambush Leaves 2 Des Moines-Area
    Officers Dead, Des Moines Reg. (last updated Nov. 3, 2016, 1:23 PM),
    https://www.desmoinesregister.com/story/news/2016/11/02/2-police-officers-killed-
    ambush-attacks/93155012/ [https://perma.cc/GC2R-ESTM].
    7Manny   Fernandez et al., Five Dallas Officers Were Killed as Payback, Police
    Chief Says, N.Y. Times (July 8, 2016), https://www.nytimes.com/2016/07/09/
    us/dallas-police-shooting.html [https://perma.cc/45T9-2FEF].
    24
    Baton Rouge,      Louisiana.8        These     legislative   facts   provided    vivid
    reminders to the Iowa General Assembly of the dangers police face on the
    job. While this appeal was under submission, a firefighter died in the
    line of duty in Clinton, Iowa, with another firefighter seriously injured.9
    It is inarguable that the legislature could rationally conclude public
    safety employees face significantly greater risks to their health and safety
    than other public employees.
    The plaintiffs argue House File 291 is impermissibly overinclusive
    and underinclusive and denies the expanded collective bargaining rights
    to many public safety employees who belong to a bargaining unit
    comprised of less than thirty percent public safety employees.                    The
    plaintiffs further argue that some public employees with public safety
    functions, such as corrections officers, university police, DOT road safety
    workers, and psychiatric aids, lack expanded bargaining rights under
    House File 291. The plaintiffs also argue that House File 291 arbitrarily
    grants certain public employees expanded bargaining rights because they
    are part of a public safety bargaining unit, even if they are not public
    safety employees. Finally, the plaintiffs argue that the topics over which
    public safety employee units are able to bargain is not limited solely to
    health and safety issues.
    The defendants rely on the Seventh Circuit decision that rejected
    an equivalent challenge.
    8Alan Blinder, The 3 Officers Killed in Baton Rouge, N.Y. Times (July 18, 2016),
    https://www.nytimes.com/2016/07/19/us/the-3-officers-killed-in-baton-rouge.html
    [https://perma.cc/8DXG-F8JJ].
    9Thomas    Geyer & Amanda Hancock, Clinton Firefighter Killed, Another Seriously
    Injured While Battling Fire Saturday, Quad City Times (Jan. 5, 2019),
    https://qctimes.com/news/local/clinton-firefighter-killed-another-seriously-injured-
    while-battling-fire-saturday/article_9816ef7d-415c-531b-b258-497f14a09a8b.html
    [https://perma.cc/K2HY-XFFL].
    25
    [W]e cannot, as the Unions request, determine precisely
    which occupations would jeopardize public safety with a
    strike.   Even if we accept that Wisconsin imprudently
    characterized motor vehicle inspectors as public safety
    employees or the Capitol Police as general employees,
    invalidating the legislation on that ground would elevate the
    judiciary to the impermissible role of supra-legislature. . . .
    Distinguishing between public safety unions and general
    employee unions may have been a poor choice, but it is not
    unconstitutional.
    
    Walker, 705 F.3d at 656
    . The Seventh Circuit specifically considered the
    omission of correctional officers, explaining,
    Even if we agree with the Unions that Act 10 should have
    placed prison guards in the public safety category, “a
    legislature need not run the risk of losing an entire remedial
    scheme simply because it failed, through inadvertence or
    otherwise, to cover every evil that might conceivably have
    been attacked.”
    
    Id. at n.11
    (quoting McDonald v. Bd. of Election Comm’rs, 
    394 U.S. 802
    ,
    809, 
    89 S. Ct. 1404
    , 1409 (1969)).
    3. The thirty percent threshold.       In our view, the foregoing
    authorities make clear the Iowa Constitution permits the State to treat
    public safety employees differently from other public employees and to
    treat bargaining units comprised of at least thirty percent public safety
    employees better than bargaining units with a smaller percentage. The
    plaintiffs nevertheless argue that the thirty percent threshold itself is
    unconstitutional, even if the labor peace and public safety rationales
    would permit preferential treatment of a bargaining unit comprised solely
    of public safety employees.      The State responds that the legislative
    classifications reflect the current reality that local government bargaining
    units in Iowa happen to be comprised of a mix of public safety employees
    and other employees.       The State notes it would be impractical to
    segregate for collective bargaining purposes public safety employees and
    other employees with different employers and unions. The plaintiffs fail
    26
    to persuasively rebut that State’s showing of the practical problems with
    interunit collective bargaining. Nor do the plaintiffs suggest a different,
    higher threshold that concededly passes constitutional muster.                    Ten
    percent?    Forty percent?       Ninety percent?       Perhaps in plaintiffs’ view
    preferential treatment can be allowed only for public safety employees
    isolated in their own bargaining unit with no one else, as in Wisconsin.10
    It is not the court’s role under our separation of powers to redraw
    the legislature’s chosen thirty percent threshold.            The Seventh Circuit
    recognized that “[d]efining the class of persons subject to a regulatory
    requirement . . . requires that some persons who have an almost equally
    strong claim to favored treatment be placed on different sides of the line
    . . . [and this] is a matter for legislative, rather than judicial,
    consideration.” 
    Walker, 705 F.3d at 655
    (alterations in original) (quoting
    Beach Commc’ns, 
    Inc., 508 U.S. at 315
    –16, 113 S. Ct. at 2102).                     We
    reiterate that “[f]or legislation to be violative of the Iowa Constitution
    under the rational basis test, the classification must involve ‘extreme
    degrees of overinclusion and underinclusion in relation to any particular
    goal.’ ” Ames Rental Prop. Ass’n v. City of Ames, 
    736 N.W.2d 255
    , 260
    (Iowa 2007) (quoting 
    RACI, 675 N.W.2d at 10
    ). We hold that the thirty
    percent threshold is not so extremely overinclusive or underinclusive as
    to flunk our deferential rational basis review.
    10Iowa  public safety employees now in bargaining units below the thirty percent
    threshold may be able to vote with their feet and reorganize into a new bargaining unit
    to attain the preferential bargaining rights, as AFSCME’s counsel acknowledged at oral
    argument.
    Unlike Iowa, the Wisconsin statutory scheme separates public safety employees
    by occupation into their own statewide bargaining unit. See Wis. Stat. Ann. § 111.825
    (West, Westlaw current through 2017 Act 370). The Wisconsin legislature was not
    confronted with bargaining units comprised of public safety employees and other
    employees.
    27
    We decline to second-guess the legislature’s constitutional policy
    choices. We conclude that the plaintiffs have failed to meet their burden
    of negating every conceivable basis upon which House File 291 could be
    upheld. For that reason, plaintiffs’ equal protection challenge fails.
    B. Plaintiffs’ Freedom of Association Claim.            The plaintiffs
    claim that House File 291 unconstitutionally infringes on their right to
    associate with AFSCME. The plaintiffs argue that associating with the
    union of their choice is a fundamental right under the First Amendment
    and House File 291 is therefore subject to strict scrutiny. The district
    court correctly rejected this claim.
    “The First Amendment embodies the freedom of association, the
    right to ‘enter into and maintain certain intimate human relationships
    [without] undue intrusion by the State.’ ”      
    Baker, 867 N.W.2d at 52
    (alteration in original) (quoting Roberts v. U.S. Jaycees, 
    468 U.S. 609
    ,
    617–18, 
    104 S. Ct. 3244
    , 3249 (1984)); see also Sioux City Police Officers’
    Ass’n v. City of Sioux City, 
    495 N.W.2d 687
    , 697 (Iowa 1993) (discussing
    freedom of association).       Strict scrutiny applies when a suspect
    classification or fundamental right is involved. 
    King, 818 N.W.2d at 31
    .
    As the United States Supreme Court noted in Roberts,
    [T]he constitutional shelter afforded such relationships
    reflects the realization that individuals draw much of their
    emotional enrichment from close ties with others. Protecting
    these relationships from unwarranted state interference
    therefore safeguards the ability independently to define one’s
    identity that is central to any concept of liberty.
    
    Roberts, 468 U.S. at 619
    , 104 S. Ct. at 3250.
    Plaintiffs argue that public employees have a right to organize and
    join labor unions. See State v. Keul, 
    233 Iowa 852
    , 855, 
    5 N.W.2d 849
    ,
    852 (1942) (“The right to form labor unions and by lawful means to act in
    furtherance of their legitimate purposes is not open to question.”). The
    28
    plaintiffs note that “[w]e have traditionally followed the U.S. Supreme
    Court’s guidance in determining which rights are deemed fundamental.”
    
    King, 818 N.W.2d at 26
    . The plaintiffs also note that the United States
    Supreme Court has found that the right to join a union is a protected
    associational right. Bhd. of R.R. Trainmen v. Virginia ex rel. Va. State Bar,
    
    377 U.S. 1
    , 8, 
    84 S. Ct. 1113
    , 1118 (1964) (“[T]he Constitution protects
    the associational rights of the members of the union precisely as it does
    those of the NAACP.”); see also Am. Fed’n of State, Cty., & Mun. Emps. v.
    Woodward, 
    406 F.2d 137
    , 139 (8th Cir. 1969) (“Union membership is
    protected by the right of association under the First and Fourteenth
    Amendments.”).
    The plaintiffs argue that House File 291 both intentionally and
    incidentally infringes on their fundamental right to associate with a
    union of their choice.    AFSCME represents a number of state peace
    officers and firefighters excluded from the definition of public safety
    employee.     Further, all AFSCME-represented bargaining units are
    comprised of less than thirty percent public safety employees and thus
    are excluded from bargaining over any matter other than base wage. For
    that reason, plaintiffs argue House File 291 infringes on a fundamental
    right and is subject to strict scrutiny review. Under strict scrutiny, “the
    statute will survive a constitutional challenge only if it is shown that the
    statute is narrowly drawn to serve a compelling state interest.” City of
    Maquoketa v. Russell, 
    484 N.W.2d 179
    , 184 (Iowa 1992) (quoting City of
    Panora v. Simmons, 
    445 N.W.2d 363
    , 367 (Iowa 1989)).
    We reiterate that the scope of collective bargaining rights of public
    employees “is a matter for the legislature, not the courts.” State Bd. of
    Regents v. United Packing House Food & Allied Workers, Local No. 1258,
    
    175 N.W.2d 110
    , 113 (Iowa 1970); see also Bennett v. City of Redfield,
    29
    
    446 N.W.2d 467
    , 473 (Iowa 1989) (“The right to public employment is not
    a fundamental right.”).           House File 291 does not prohibit or restrict
    unions from soliciting members, disseminating materials, engaging in
    political activities, or expressing their views. As the State argues, “There
    is a fundamental distinction between the right to associate and whether
    someone must listen when you do. Declining to collectively bargain over
    certain topics does not inhibit the ability to associate.”                   We agree and
    apply rational basis review to this challenge. Nothing in House File 291
    prohibits public employees from joining AFSCME or any other union.
    The Fourth Circuit rejected a claim that legislation ending payroll
    deductions for union dues violated associational rights.                         S.C. Educ.
    
    Ass’n, 883 F.2d at 1263
    –64. That court noted that the
    legislation does not prohibit, regulate, or restrict the right of
    the [union] or any other organization to associate, to solicit
    members, to express its views, to publish or disseminate
    material, to engage in political activities, or to affiliate or
    cooperate with other groups.
    
    Id. at 1256.
    The same is true of House File 291.
    The plaintiffs charge that House File 291 “red circles” AFSCME-
    represented bargaining units.11 The plaintiffs contend this targeting was
    artful and capricious and performed with “scalpel-like precision” to
    specifically target AFSCME.               The district court expressly “reject[ed]
    Plaintiffs’ contention that [House File 291] ‘red circles’ AFSCME
    bargaining units or impinges on freedom of association with AFSCME.”
    11The plaintiffs have not alleged that House File 291 is an unconstitutional bill
    of attainder. See U.S. Const. art. I, § 9, cl. 3 (“No Bill of Attainder . . . shall be passed”);
    Iowa Const. art. I, § 21 (“No bill of attainder . . . shall ever be passed.”); Atwood v.
    Vilsack, 
    725 N.W.2d 641
    , 651 (Iowa 2006) (“A bill of attainder ‘is a legislative
    determination that metes out punishment to a particular individual or a designated
    group of persons without a judicial trial.’ ” (quoting State v. Phillips, 
    610 N.W.2d 840
    ,
    843 (Iowa 2000))).
    30
    The text of House File 291 is facially neutral. The plaintiffs offered
    no evidence that the thirty percent threshold was chosen to target
    AFSCME. As we have explained above, House File 291 survives rational
    basis review.    House File 291 was enacted within the power of the
    general assembly.     Accordingly, we will not inquire into the subjective
    motives of individual legislators, regardless of whether political payback
    inspired some of them.
    The Sixth Circuit, in rejecting a constitutional challenge to a
    Michigan statute prohibiting public school employee payroll deductions
    for union dues, expressly declined to “ ‘peer[] past’ the [statutory] text . . .
    ‘to infer some invidious legislative intention.’ ” Bailey v. Callaghan, 
    715 F.3d 956
    , 960 (6th Cir. 2013) (quoting 
    Walker, 705 F.3d at 649
    –50)). The
    Sixth Circuit concluded it was bound by the “familiar principle of
    constitutional law that this Court will not strike down an otherwise
    constitutional statute on the basis of an alleged illicit legislative motive.”
    
    Id. (quoting United
    States v. O’Brien, 
    391 U.S. 367
    , 383, 
    88 S. Ct. 1673
    ,
    1682 (1968)); see also In re Hubbard, 
    803 F.3d 1298
    , 1312 (11th Cir.
    2015) (same). We too apply the O’Brien principle and decline to consider
    alleged motives to red circle AFSCME.
    In upholding the Wisconsin enactment more broadly curtailing
    public employee collective bargaining rights, the Seventh Circuit squarely
    addressed the claim legislators were motivated by politic payback.
    As unfortunate as it may be, political favoritism is a
    frequent aspect of legislative action. We said as much in
    Hearne v. Board of Education, 
    185 F.3d 770
    , 775 (7th Cir.
    1999). There, members of the Chicago Teachers Union
    challenged on various constitutional grounds, including the
    Equal Protection Clause, an act of the Republican-dominated
    legislature that severely curtailed Chicago teachers’ job
    security relative to teachers in other parts of the state. 
    Id. at 773.
    The unions argued, in part, that the Republican
    legislature retaliated against them for opposing Republicans
    31
    in the previous election. 
    Id. We candidly
    remarked, “there is
    no rule whereby legislation that otherwise passes the proper
    level of scrutiny . . . becomes constitutionally defective
    because one of the reasons the legislators voted for it was to
    punish those who opposed them during an election
    campaign.” 
    Id. at 775.
    We went further stating, “[i]ndeed
    one might think that this is what election campaigns are all
    about: candidates run a certain platform, political promises
    made in the campaign are kept (sometimes), and the winners
    get to write the laws.” 
    Id. These sorts
    of decisions are left
    for the next election.     Accordingly, we must resist the
    temptation to search for the legislature’s motivation for the
    Act’s classifications.
    
    Walker, 705 F.3d at 654
    .      We likewise decline to weigh the subjective
    motivations of legislators in our rational basis review under the Iowa
    Constitution. See Qwest 
    Corp., 829 N.W.2d at 559
    –60; see also 
    Rhoades, 880 N.W.2d at 447
    (declining to give weight to legislator’s affidavit).
    The 2017 amendments do not infringe on a fundamental right of
    association. The plaintiffs “come to us with a problem suitable only for
    political solution.” See Brown v. City of Lake Geneva, 
    919 F.2d 1299
    ,
    1304 (7th Cir. 1990).     The plaintiffs are free to attempt to persuade
    public employers, such as the State and local governments and school
    boards, to voluntarily bargain over formerly mandatory terms.             The
    plaintiffs otherwise must look to the ballot box and the elected branches
    to change this lawfully enacted statute.
    IV. Conclusion.
    For these reasons, we affirm the district court’s summary
    judgment in favor of the State and PERB.
    AFFIRMED.
    Mansfield, Christensen, and McDonald, JJ., join this opinion.
    Cady, C.J., files a dissenting opinion in which Wiggins, J., joins.
    Appel, J., files a separate dissenting opinion in which Cady, C.J., and
    Wiggins, J., join.
    32
    #17–1841, AFSCME v. State
    CADY, Chief Justice (dissenting).
    I respectfully dissent and join the dissent by Justice Appel. I write
    separately to emphasize the important role of courts and how a statute
    that treats people differently must not only have a rational basis, but one
    that fits the statute. See Varnum v. Brien, 
    763 N.W.2d 862
    , 879 (Iowa
    2009) (“[T]he deference built into the rational basis test is not dispositive
    because this court engages in a meaningful review of all legislation
    challenged on equal protection grounds by applying the rational basis
    test to the facts of each case.”).
    The legislation at issue gives expansive collective bargaining rights
    to public safety employees, but very limited collective bargaining rights to
    other public employees. Our constitutional doctrine of equal protection
    recognizes that most all laws tend to discriminate in some way, so the
    focus of the analysis turns on whether the unequal treatment is properly
    justified. See NextEra Energy Res. LLC v. Iowa Utils. Bd., 
    815 N.W.2d 30
    ,
    46 (Iowa 2012) (explaining a classification resulting in some inequality
    does not necessarily violate equal protection). If it is, the constitutional
    mandate of equal protection is not violated. 
    Id. The majority
    opinion finds a rational basis to justify the disparate
    treatment in this case from the special need to protect the public against
    the potential harm of labor unrest by public safety employees and to give
    special protection to public safety employees from the health and safety
    risks they face on the job. The premise is that public safety is a vital
    concern in Iowa and this concern supports special laws that give greater
    bargaining rights to public safety employees than other public employees
    to help keep them on the job, instead of engaging in strikes or becoming
    injured and unable to perform their jobs.
    33
    I agree with the conclusion in the majority opinion that the rational
    reasons identified are an adequate justification for disparate collective
    bargaining treatment among public employees. I also agree it is not the
    role of courts to find criticism of public policy based on disagreement
    over policy. Any such form of criticism, even implicit, has no place in the
    analysis by courts. Instead, the only role of the courts in the process is
    to decide if the discrimination is justified under the facts and
    circumstances.
    In this case, the legislation offends our constitution. The problem
    with the law is not its purpose or justification to discriminate, but how
    the general assembly failed to apply this purpose in articulating the law.
    Instead of treating public employees differently by dividing them into one
    group of public safety employees and another group of other public
    employees, the general assembly passed a law giving different rights to
    public employees based on their membership in a collective bargaining
    agreement. The problem is that bargaining units in Iowa contain both
    public safety employees and other public employees. Thus, while the law
    purported to put public safety employees in a separate class based on a
    valid purpose, it created classifications by using bargaining units and
    permitted the bargaining units to contain up to seventy percent of
    persons who are not public safety employees. This means the statute
    enacted ended up giving many public employees rights of public safety
    employees and denied many public safety employees those rights.
    This type of line drawing falls far too short of our constitution’s
    demands.    While line drawing can never be clean and can present a
    variety of obstacles, this case is not even close to a fair delineation.
    Moreover, there is simply no reason why the general assembly could not
    have drawn the lines to eliminate the unconstitutional distinctions. The
    34
    law cannot purport to give needed special protection to one group of
    people and then allow that group to be populated by up to seventy
    percent of other people not included within the purpose. This approach
    is a bad fit and destroys the justification for the law.
    If the line drawing needed to accomplish the stated purpose in this
    case were difficult to do, as it can be in some cases, leeway would exist.
    But, in truth, there is no reason it cannot be done in this case.
    Constitutional lines are clearly available. A collective bargaining statute
    in Wisconsin is one such example.              See Wis. Educ. Ass’n Council v.
    Walker, 
    705 F.3d 640
    , 642–43 (7th Cir. 2013). Here, the line required by
    the constitution simply was not drawn. 
    Id. The majority
    opinion relies on Walker as its authority to support
    the constitutionality of the Iowa statute.             That reliance is misplaced.
    Walker involved a Wisconsin statute that gave broader collective
    bargaining agreements to those public employees designated as public
    safety employees based on the same rationale used in this case. 
    Id. at 655.
    Yet, unlike the Iowa statute, the Wisconsin statute divided public
    safety employees and other public employees into two separate groups.
    
    Id. at 642–43.
          Unlike the Iowa statute, the statute did not use
    percentages of public safety employees within a bargaining unit to allow
    for such dramatic overlap.      Thus, the purpose of the statute fit the
    categories   drawn,    and   this   fit     allowed     the    legislation   to   pass
    constitutional scrutiny. 
    Id. at 654–57.
    Accordingly,     the   Walker       decision      does    not    support     the
    constitutionality of the statute in this case, and the majority opinion
    offers little more analysis.        It only relies on the justification to
    discriminate     and     ignores      the       vast      overinclusiveness       and
    underinclusiveness of classifying employees based on membership in
    35
    bargaining units. As a result, the Iowa statute ends up treating many
    similarly situated public employees in Iowa differently based solely on the
    bargaining unit they belong to and not for the reason the constitution
    would justify different treatment of public employees. Our constitution
    requires laws to treat similarly situated people equally unless there is an
    adequate reason otherwise.      In this case, the overinclusiveness and
    underinclusiveness written into the statute drowned this reason out.
    Our constitutional form of government depends on courts to see it and
    demand better.
    Wiggins, J., joins this dissent.
    36
    #17–1841, AFSCME v. State
    APPEL, Justice (dissenting).
    I. Introduction.
    House File 291 is an odd statute.      See 2017 Iowa Acts ch. 2,
    §§ 1, 6 (codified at Iowa Code §§ 20.3(11), .9 (2018)). It slices and dices
    the universe of public employees entitled to collective bargaining by
    various categories in multiple novel ways that are overinclusive and
    underinclusive.   One of the two ostensible purposes—labor peace—is
    advanced even though severe sanctions for striking have been in place
    for forty years, and during that period, there has never been a strike by
    any public employees. Further, the means chosen by the legislature—an
    arbitrary grouping and shuffling of public employees that is overinclusive
    and underinclusive—bears no rational relation to either labor peace or
    promoting the health and safety of public employees exposed to danger
    in their jobs.
    In my view, therefore, the law does not survive rational basis
    review under article I, section 6 of the Iowa Constitution. Accordingly, I
    respectfully dissent.
    II. Overview of House File 291.
    I begin with a discussion of the remarkable classification system
    created by the law. It identifies an oddball group of public employees
    and throws them into the burlap grab bag labeled “public safety
    employee[s].” 
    Id. § 1
    (codified at Iowa Code § 20.3(11)). Then, some of
    those within the grab bag are denied privileges that others receive. 
    Id. § 6.
      And some public employees not within the grab bag receive the
    benefits denied to a portion of public safety employees, while others do
    not. 
    Id. Perplexing, I
    know. The classification system is illogical.
    37
    The identification of public safety employees is made not on the
    basis of an employee’s duties or functions, but rather by the title an
    employee holds.    
    Id. § 1
    (codified at Iowa Code § 20.3(11).      In some
    respects, the “public safety” grab bag is astonishingly inclusive.      The
    grab bag was stretched astoundingly wide.          It accommodates park
    rangers, gaming enforcement officers, and peace officers designated by
    the department of transportation. 
    Id. But then,
    it excludes employees with obvious public safety
    responsibilities. The grab bag has no room for university police who, just
    like other police officers, are law enforcement officers pursuant to Iowa
    Code chapter 80B, are trained and certified by the Iowa Law Enforcement
    Academy, and engage in law enforcement and emergency response
    alongside other city police officers. 
    Id. Airport firefighters
    are excluded
    even though they too work alongside the firefighters designated as public
    safety employees by House File 291. 
    Id. The law
    also excludes others,
    like parole officers and fraud bureau investigators, who work in
    unpredictable environments with broad arrest powers and the obligation
    to respond to emergencies.     
    Id. And none
    of our state’s corrections
    officers, jailers, and emergency medical service providers are considered
    public safety employees. 
    Id. Yet all
    of those public employees work in
    “protection occupations.” Iowa Code § 97B.49B(1)(e).
    As is evident, the statutory classification of public safety employees
    is obviously remarkably overinclusive and underinclusive.          No one
    questions that.   And no one questions that the overinclusiveness and
    underinclusiveness are among the features that make the classifications
    in House File 291 suspect.
    I think it very doubtful that the classification of public safety
    employees makes much sense, but we are not done with the
    38
    irrationalities of the statute. This is because classification as a public
    safety employee does not even determine whether a public employee gets
    the benefits of collective bargaining granted to some and denied others.
    Under House File 291, full collective bargaining rights are provided
    to all state employees in bargaining units with at least thirty percent
    public safety employees. 
    Id. § 6
    (codified at Iowa Code § 20.9). In such a
    unit, the thirty percent public safety employees get the benefit of
    representatives who have the ability to collectively bargain fully over
    wages and a list of other terms and conditions of employment. 
    Id. But so
    do the remaining seventy percent of non-“public safety employees” in
    the bargaining unit. 
    Id. Thus, in
    a unit with thirty percent public safety
    employees, a supermajority of the beneficiaries are not public safety
    employees! If the law is designed to target public safety employees for
    preferential treatment, it is way, way overbroad.
    And yet, once again, it is also underinclusive.      What about a
    bargaining unit with twenty-nine percent public safety employees?
    Those public safety employees, along with their colleagues in the
    bargaining unit, are out in the cold. See 
    id. For instance,
    we are told
    that the police officers serving the City of Guttenberg, along with the
    police and fire departments of the City of Decorah, are all relegated to
    disfavored status under House File 291. So too are the deputy sheriffs of
    Humboldt County, even though the county sheriffs and Humboldt police
    officers serve side-by-side and share equipment.
    Thus, the set of public safety employees benefiting from the statute
    is doubly underinclusive. The definition of “public safety employees” is
    underinclusive, and then only some public safety employees are doled
    out benefits based solely on whether the employee happens to fall within
    39
    a given type of bargaining unit.     
    Id. §§ 1,
    6 (codified at Iowa Code
    §§ 20.3(11), .9).
    What kind of statute is this? Notably, the parties have failed to
    identify a similar statute anywhere at any time. House File 291 is unlike
    the recent legislation passed in Wisconsin because, under the Wisconsin
    law, all those designated as public safety employees receive broader
    collective bargaining rights and all those who are not so designated do
    not receive those rights.   See Wis. Educ. Ass’n Council v. Walker, 
    705 F.3d 640
    , 642–43 (7th Cir. 2013). Make no mistake, House File 291 is
    really odd.
    III. Framework for Rational Basis Review.
    Our approach to rational basis review is well-established.      See
    LSCP, LLLP v. Kay-Decker, 
    861 N.W.2d 846
    , 859 (Iowa 2015); Racing
    Ass’n of Cent. Iowa v. Fitzgerald (RACI), 
    675 N.W.2d 1
    , 7–8 (Iowa 2004).
    In general terms, “to pass the rational basis test, the statute must be
    ‘rationally related to a legitimate state interest.’ ” 
    LSCP, 861 N.W.2d at 858
    (quoting Qwest Corp. v. Iowa State Bd. of Tax Review, 
    829 N.W.2d 550
    , 558 (Iowa 2013)). In undertaking our analysis, we employ a three-
    part test.
    First, we identify the classes of similarly situated persons treated
    differently. 
    LSCP, 861 N.W.2d at 859
    . This is a threshold determination.
    
    Id. We do
    not make intricate distinctions between purported classes of
    similarly situated individuals, as “[n]o two groups are identical in every
    way.” 
    Qwest, 829 N.W.2d at 561
    .
    Next, we “examine the legitimacy of the end to be achieved.” 
    LSCP, 861 N.W.2d at 860
    (quoting Fed. Land Bank of Omaha v. Arnold, 
    426 N.W.2d 153
    , 156 (Iowa 1988)). We consider “whether there was a valid,
    ‘realistically conceivable’ purpose that served a legitimate government
    40
    interest.”    Residential & Agric. Advisory Comm., LLC v. Dyersville City
    Council, 
    888 N.W.2d 24
    , 50 (Iowa 2016) (quoting McQuistion v. City of
    Clinton, 
    872 N.W.2d 817
    , 831 (Iowa 2015)). “A legitimate interest can be
    any reasonable justification, not just the one the legislature actually
    chose.”12 
    LSCP, 861 N.W.2d at 858
    .
    Our review of the legitimacy of the end to be achieved is not
    toothless. 
    Id. at 860.
    We consider whether the claimed state interest is
    “realistically conceivable” and “decide whether this reason has a basis in
    fact.”     Id. (quoting 
    RACI, 675 N.W.2d at 7
    –8).                   “The ‘realistically
    conceivable’ standard requires more than ‘a purely superficial analysis
    and implies that the court is permitted to “probe to determine if the
    constitutional requirement of some rationality in the nature of the class
    singled out has been met.” ’ ” Id. (quoting 
    RACI, 675 N.W.2d at 7
    n.3).
    “ ‘Basis in fact’ means ‘the court will undertake some examination of the
    credibility of the asserted factual basis for the challenged classification
    rather than simply accepting it at face value.’ ” Id. (quoting 
    RACI, 675 N.W.2d at 8
    n.4). “In other words, although ‘actual proof of an asserted
    justification [i]s not necessary, . . . the court w[ill] not simply accept it at
    face value and w[ill] examine it to determine whether it [i]s credible as
    opposed to specious.”        
    Id. (alterations in
    original) (quoting 
    Qwest, 829 N.W.2d at 560
    ).
    Third, we consider the relationship between the classification and
    the purpose of the classification. The fit between the means chosen by
    the legislature and its objective need not be perfect, but it must be
    rational.    
    Id. at 859.
         “[W]e must consider whether the relationship
    12Some states decline to consider hypothetical justifications in considering equal
    protection claims brought under state constitutions. See State v. Russell, 
    477 N.W.2d 886
    , 889 (Minn. 1991). We need not consider the question here because the statute is
    infirm even under the hypothetical justifications advanced by the State.
    41
    between the classification . . . and the purpose of the classification is so
    weak that the classification must be viewed as arbitrary.” 
    Id. at 860.
    “Under    the   Iowa   Constitution,   we   determine    whether    a
    classification rationally furthers a legitimate state interest by evaluating
    whether the classification features ‘extreme degrees of overinclusion and
    underinclusion in relation to any particular goal.’ ” 
    Id. at 861
    (quoting
    Bierkamp v. Rogers, 
    293 N.W.2d 577
    , 584 (Iowa 1980)).                 “If a
    classification involves extreme overinclusion or underinclusion ‘in
    relation to any particular goal, it cannot [reasonably] be said to . . .
    further that goal.’ ” 
    Id. (quoting Bierkamp
    , 293 N.W.2d at 584).
    Of course, we have explained that rational basis review is a “very
    deferential standard.” NextEra Energy Res. LLC v. Iowa Utils. Bd., 
    815 N.W.2d 30
    , 46 (Iowa 2012) (quoting Varnum v. Brien, 
    763 N.W.2d 862
    ,
    878 (Iowa 2009)). “The plaintiff has the heavy burden of showing the
    statute unconstitutional and must negate every reasonable basis upon
    which the classification may be sustained.” 
    Id. (quoting Bierkamp
    , 293
    N.W.2d at 579–80).     Further, “[a] classification ‘does not deny equal
    protection simply because in practice it results in some inequality;
    practical problems of government permit rough accommodations.’ ” 
    Id. (alteration in
    original) (quoting In re Det. of Morrow, 
    616 N.W.2d 544
    , 548
    (Iowa 2000)).
    But “[t]he deference we afford the legislature’s classifications ‘is
    not, in and of itself, necessarily dispositive’ under article I, section 6.”
    
    LSCP, 861 N.W.2d at 859
    (quoting 
    Bierkamp, 293 N.W.2d at 581
    ). Our
    “rigorous standards have not . . . prevented this court from finding
    economic . . . legislation in violation of equal protection provisions.”
    
    RACI, 675 N.W.2d at 8
    –9.      “[E]ven in the economic sphere, a citizen’s
    guarantee of equal protection is violated if desirable legislative goals are
    42
    achieved . . . through wholly arbitrary classifications or otherwise
    invidious discrimination.” Fed. Land 
    Bank, 426 N.W.2d at 156
    . “It is for
    the judicial department to determine whether any department has
    exceeded its constitutional functions . . . .”    Luse v. Wray, 
    254 N.W.2d 324
    , 327 (Iowa 1977) (quoting 16 C.J.S. Constitutional Law § 144, at
    688).
    IV. Applying Iowa’s Rational Basis Review.
    A. The Statutory Classifications.        As described above, House
    File 291 classifies public employees in multiple unusual ways. Among
    the public employees with safety responsibilities, it identifies some as
    public safety employees and omits others.         2017 Iowa Acts ch. 2, § 1
    (codified at Iowa Code § 20.3(11)). Then, it goes on to even omit some of
    the public safety employees from the benefits of broader collective
    bargaining while allowing large numbers of those not branded as public
    safety employees to benefit from broader collective bargaining.         
    Id. § 6
    (codified at Iowa Code § 20.9).
    Therefore, House File 291 treats many similarly situated persons
    differently.   First, some public employees with safety responsibilities—
    like university police, airport firefighters, corrections officers, jailers, and
    emergency medical service providers—are similarly situated to other
    public employees with safety responsibilities yet treated differently. See
    
    id. § 1
    (codified at Iowa Code § 20.3(11)). Second, only some of the public
    employees that House File 291 itself considers similarly situated—public
    safety employees—are able to benefit from broader collective bargaining.
    
    Id. § 6
    (codified at Iowa Code § 20.9). Third, among the public employees
    that are not considered public safety employees by the law, some are able
    to engage in broader collective bargaining and others are not. 
    Id. 43 B.
    Examining Ends. The State has suggested two purposes for
    House File 291—labor peace and the health and safety of public safety
    employees. Neither provides a basis for sustaining this statute.
    I begin with the purported purpose of labor peace.          First, the
    historical record is striking. No one claims that there has ever been a
    strike of any public employees, let alone public safety employees, since
    the enactment of the Public Employment Relations Act over forty years
    ago.   Further, no one claims that such a strike has been seriously
    threatened.   The lack of any facts to support the asserted rationale is
    troubling.
    Second, as plaintiffs point out, labor peace was not a rationale for
    the law asserted by any Iowa legislators during the floor debate. That is
    striking. If there was truly a risk to public safety that a strike by public
    safety employees would create, surely the legislators would have said so.
    The fact that avoiding strikes was not even mentioned in the debates
    further suggests a lack of basis in fact.
    Third, for forty years, draconian sanctions have been in place in
    the event any public employee contemplated striking. The sanctions can
    include imprisonment for six months; daily individual fines of $500; daily
    union fines of $10,000; termination from employment and ineligibility for
    public employment for one year; decertification of union and one-year
    waiting period for recertification; injunctions; contempt; and “any other
    legal or equitable remedy or penalty.”      Iowa Code § 20.12(3)–(6).    The
    existence and effectiveness of the sanctions undermine the State’s
    argument that labor peace is a purpose of the discriminatory treatment
    in House File 291. See, e.g., U.S. Dep’t of Agric. v. Moreno, 
    413 U.S. 528
    ,
    536–37, 
    93 S. Ct. 2821
    , 2827 (1973) (explaining that pre-existing
    provisions addressing fraud “necessarily casts considerable doubt upon
    44
    the proposition that the 1971 amendment could rationally have been
    intended to prevent those very same abuses”).
    In Iowa, we “examin[e] . . . the credibility of the asserted factual
    basis for the challenged classification rather than simply accepting it at
    face value.” 
    LSCP, 861 N.W.2d at 860
    (quoting 
    RACI, 675 N.W.2d at 8
    &
    n.4). Based on the history, the lack of justification in legislative debates,
    and the existence of strong sanctions already addressing the problem, I
    conclude that the labor peace rational fails that test.
    As an alternative, the State generally claims that the health and
    safety of certain endangered public employees could be a legitimate end
    for the law. No one questions the general proposition that promoting the
    health and safety of employees is a legitimate state interest. Of course,
    that generalization may be declared as supporting every statute. But to
    the extent House File 291 provides nebulous health and safety benefits
    apparently arising from robust collective bargaining rights, what is the
    rationale for denying those benefits to other public safety employees
    under the statute?     It seems odd to suggest that some public safety
    employees are entitled to the health and safety benefits afforded by
    robust collective bargaining and benefits and others are not. Why, say,
    are park rankers entitled to the health and safety benefits of robust
    collective bargaining while corrections officers are not? While health and
    safety benefits may justify robust collective bargaining rights, that
    benefit is equally applicable to the excluded public safety employees.
    C. Examining Means.        I now turn to the question of whether
    there is a rational relationship between the purported goals of the statute
    and the means chosen by the legislature.        For the reasons expressed
    below, I find it hard to see a rational relationship between the means
    chosen and the ends asserted.
    45
    If labor peace were the goal, why aren’t corrections staff, or parole
    officers, or university police officers, or healthcare workers, provided the
    benefits of the statute? Other states deal with the potential of strikes in
    inclusive ways. See, e.g., Cty. Sanitation Dist. No. 2 v. L.A. Cty. Emps.
    Ass’n, 
    699 P.2d 835
    , 846 & n.26 (Cal. 1985) (en banc) (noting that ten
    states permit public employees to strike “unless such strikes endanger
    the public health, safety, or welfare” and explaining that “[t]he statutes
    generally prohibit strikes by police and fire-protection employees,
    employees    in   correctional   facilities,   and   those   in   health-care
    institutions”). If House File 291 is designed to prevent strikes that would
    jeopardize public safety, it is remarkably underinclusive.
    Conversely, is there anything in the record suggesting that public
    safety employees included in the House File 291 grab bag have
    threatened to strike? And if they have, have they threatened to strike
    more frequently or more intensively than the corrections officials and
    university police? Is there anything in the record suggesting that a strike
    by gaming enforcement officers would be a threat to public safety? And
    could it be of the same magnitude as a strike by the many police and fire
    departments left out in the cold by the thirty percent threshold?
    Moreover, is the danger of a strike by non-“public safety employees” in a
    favored bargaining unit somehow of such concern that they, too, need
    special bargaining rights? These questions, of course, must be answered
    in the negative, and reveal the arbitrariness and extreme overinclusion of
    the classifications if they are designed to ensure labor peace.
    Most importantly, perhaps, is the absence of a rational connection
    between doling benefits and preventing strikes. Does the record, or any
    legislative facts, show that only some public safety employees—i.e., those
    in unions in which they comprise more than thirty percent of members—
    46
    need special benefits to convince them not to break the law and strike?
    Or that, unless they are doled out special benefits, police officers in those
    units (and I guess gaming enforcement officers, park rangers, and DOT
    officers) will refuse to do their duty in the face of others breaking the law
    and striking?       Are public safety employees in units in which they
    comprise less than thirty percent of members somehow better able to
    resist lawbreaking? Or are those public safety employees less important
    to public safety?
    The classifications in House File 291 are arbitrary if the goal was
    labor peace. There is no relationship between the classifications, which
    feature extreme degrees of overinclusion and underinclusion, and labor
    peace. And the linchpin of the argument advanced in favor of the law—
    public safety employees might strike in the face of criminal penalty if
    they are not granted special status—is specious.       In the face of such
    irrationality, I would not uphold the oddball classifications in House File
    291.
    I now turn to the question of whether the classifications in House
    File 291 may be supported as health and safety measures. In my view,
    the slicing and dicing in House File 291 bears no rational connection to
    protecting health and safety of public employees exposed to greater risks.
    In short, and as detailed below, the law confers privileges on some public
    employees and withholds them from others without regard to whether
    the persons actually face greater danger.       It also does not consider
    whether the privileges are rationally related to protecting health and
    safety.
    The legislature’s choice of who may be allowed greater collective
    bargaining rights is grievously underinclusive towards achieving a goal of
    protecting health and safety of public employees exposed to danger. Why
    47
    omit university police officers, corrections officers, jailers, emergency
    medical service providers, airport firefighters, and others from the
    category of public safety employees? 2017 Iowa Acts ch. 2, § 1 (codified
    at Iowa Code § 20.3(11)).    The record shows that many employees in
    these jobs, especially corrections officers and university police officers,
    face similar or greater risks than those classified as public safety
    employees. Psychiatric aides and medical technicians, according to the
    record, are approximately four times as likely to be injured on the job as
    are police officers and approximately 150 times as likely to be injured on
    the job as firefighters. Meanwhile, the number of road safety workers
    killed in Iowa exceeds the number of police killed in the line of duty.
    Moreover, why prevent even some of the public safety employees
    from being able to attain the collective bargaining benefits that,
    purportedly, would protect their health and safety? 
    Id. § 6
    (codified at
    Iowa Code § 20.9). If the purpose was to protect the health and safety of
    public employees exposed to danger, or even just the health and safety of
    an anointed group of those public employees, the statute is fatally
    underinclusive.
    The statute, of course, is also overinclusive if the goal is to protect
    health and safety of those exposed to greater danger.            Why allow
    supermajorities of non-“public safety employees” to access those
    benefits? See 
    id. There is
    no rational explanation.
    Further, the limitations on bargaining applicable to the two groups
    are numerous, and in almost every respect, divorced from health and
    safety.   For instance, House File 291 gives units with thirty percent
    public safety employees greater rights than other units in arbitrating over
    wages.    
    Id. What rational
    connection is there between a cap on the
    wages that an arbitrator may award to some bargaining units and the
    48
    health and safety of a portion of the members of other bargaining units?
    There is none.
    Similarly, House File 291 makes seven bargaining subjects
    mandatory in the case of units with thirty percent public safety
    employees and prohibited in the case of other units. These subjects are
    “insurance, leaves of absence for political activities, supplemental pay,
    transfer   procedures,   evaluation    procedures,   procedures   for     staff
    reduction, and subcontracting public services.” 
    Id. Again, protecting
    the
    health and safety of some members of some bargaining units does not
    rationally connect to giving all of the members of those units the
    exclusive right to bargain over those subjects.
    Indeed, House File 291 requires mandatory negotiation over
    seventeen specified subjects in collective bargaining with units comprised
    of at least thirty percent public safety employees. 
    Id. Only one
    of those
    subjects is “health and safety matters.” 
    Id. And for
    other unions, none
    of the seventeen subjects is a mandatory topic of negotiations. 
    Id. The reason
    for giving the favored units such significantly greater collective
    bargaining rights is not rationally explainable by a desire to protect the
    health and safety of a portion of the benefited units.
    The situation we face is not like that in Wisconsin.              Unlike
    Wisconsin, as noted above, the Iowa law shuffles the public safety
    employees into some groups that are entitled to greater benefits and
    others which are not. 
    Id. In Wisconsin,
    all public safety employees were
    entitled to greater collective bargaining rights. Wis. Educ. Ass’n 
    Council, 705 F.3d at 642
    –43.       Moreover, in Iowa, many non-“public safety
    employees” are granted greater collective bargaining rights while others
    are not.   2017 Iowa Acts ch. 2, § 6 (codified at Iowa Code § 20.9). In
    Wisconsin, no nonsafety employees were granted greater bargaining
    49
    rights.       Wis. Educ. Ass’n 
    Council, 705 F.3d at 642
    –43.        Further, the
    federal court addressing the Wisconsin law did not consider whether the
    gamut of differential collective bargaining rights present in House File
    291 bear any rational relation to health and safety. See 
    id. at 656–57
    (discussing recertification requirements and elimination of payroll
    deductions for all public employees).             Finally, reliance on federal
    precedents        ignores   that,   in    Iowa,   extreme   overinclusion    and
    underinclusion can render a statute so arbitrary as to fail the rational
    basis test. 
    LSCP, 861 N.W.2d at 859
    ; 
    RACI, 675 N.W.2d at 7
    –8.
    It   seems   to    me   that    the   extreme   overinclusiveness   and
    underinclusiveness of this statute is so striking that it does not pass
    constitutional muster under RACI principles.
    V. Conclusion.
    For the above reasons, I would reverse the judgment of the district
    court.
    Cady, C.J., and Wiggins, J., join this dissent.