delivered the opinion of the Court.
Iowa taxes adjusted revenues from slot machines on excursion riverboats at a maximum rate of 20 percent. Iowa Code § 99F.11 (2003). Iowa law provides for a maximum tax rate of 36 percent on adjusted revenues from slot machines at racetracks. §§99F.4A(6), 99F.11. The Iowa Supreme Court held that this 20 percent/36 percent difference in tax rates violates the Federal Constitution’s Equal Protection Clause, Amdt. 14, §1.
I —
Before 1989, Iowa permitted only one form of gambling— parimutuel betting at racetracks — the proceeds of which it taxed at a six pеrcent rate. Iowa Code § 99D.15 (1984). In 1989, it authorized other forms of gambling, including slot machines and other gambling games on riverboats, though it limited bets to $5 and losses to $200 per excursion. 1989 Iowa Acts ch. 67, §§ 3, 9(2); Iowa Code § 99F.3 (1996). Iowa tаxed adjusted revenues from slot machine gambling at graduated rates, with a top rate of 20 percent. 1989 Iowa Acts ch. 67, §11; Iowa Code §99F.ll (1996).
In 1994, Iowa enacted a law that, among other things, removed the riverbоat gambling $5/$200 bet/loss limits, 1994 Iowa Acts ch. 1021, §19, authorized racetracks to operate slot machines, § 13; Iowa Code §§99F.1(9), 99F.4A (1996), and imposed a graduated tax upon racetrack slot machine adjusted revenuеs with a top rate that started at 20 percent and would automatically rise over time to 36 percent, 1994 Iowa Acts ch. 1021, § 26; Iowa Code § 99F.11 (1996). The Act did not alter the tax rate on riverboat slot machine аdjusted revenues, thereby leaving the existing 20 percent rate in place. Ibid.
Respondents, a group of racetracks and an association of dog owners, brought this lawsuit in state court challenging the 1994 lеgislation on the ground that the 20 percent/36 per
*106
cent tax rate difference that it created violated the Federal Constitution’s Equal Protection Clause, Amdt. 14, § 1. The State District Court upheld the statute. The Iowa Supreme Court disagreed and, by a 4-to-3 vote, reversed the District Court. The majority wrote that the “differential tax completely defeats the alleged purpose” of the statute, namely, “to help the racetracks recover from economic distress,” that there could “be no rational reason for this differential tax,” and that the Equal Protection Clause consequently forbids its imposition.
II
Respondents initially claim that the Iowa Supreme Court’s decision rests independently upon state law. And they argue that this state-law holding bars review of the federal issue. We disagree. The Iowa Supreme Court’s opinion, after setting forth the language of both State and Federal Equal Protection Clauses, says that “Iowa courts are to ‘apply the same analysis in considering the state equal protectiоn claims as ... in considering the federal equal protection claim.’”
Id.,
at 558. We have previously held that, in such circumstances, we shall consider a state-court decision as resting upon federal grоunds sufficient to support this Court’s jurisdiction. See
Pennsylvania
v.
Muniz,
III
We here consider whether a difference in state tax rates violates the Fourteenth Amendment’s mandate that “[nlo
*107
State shall. . . deny to any person ... the equal protection of the lаws,” § 1. The law in question does not distinguish on the basis of, for example, race or gender. See,
e. g., Loving
v.
Virginia,
“[T]he Equal Protection Clause is satisfied so long as there is a plausible policy reason for the classification, the legislative facts on which the classification is apparently based rationally may have been considered to be true by the governmental decisionmaker, and the relationship of the classification to its goal is not so attenuated as to render the distinction arbitrary or irrational.” Nordlinger v. Hahn,505 U. S. 1 , 11-12 (1992) (citations omitted).
See also
id.,
at 11 (rational-basis review “is especially deferential in the context of classifications madе by complex tax laws”);
Allied Stores of Ohio, Inc.
v.
Bowers,
The Iowa Supreme Court found that the 20 percent/36 percent tax rate differential failed to meet this standard because, in its view, that difference “frustrated” what it saw as the law’s basic objectivе, namely, rescuing the racetracks from economic distress.
The Iowa Supreme Court could not deny, however, that the Iowa law, like most laws, might predominantly serve one general objective, say, helping the racetracks, while containing subsidiary provisions that seek to achieve other desirable (perhaps even contrary) ends as well, thereby producing a law that balances objectives but still serves the general objective when seen as a whole. See
Railroad Retirement Bd.
v.
Fritz,
Neither could the Iowa Supreme Court deny that the 1994 legislation, seen as a whole, can rationally be understood to do what that court says it seeks to do, namely, advance the racetracks’ economic interests. Its grant to the racetracks of authority to operate slot machines should help the racetracks economically to some degree — even if its simultaneous imposition of a tax on slot machine adjusted revenues means that the law provides less help than respondents might like. At least а rational legislator might so believe. And the Constitution grants legislators, not courts, broad authority (within the bounds of rationality) to decide whom they wish to help with their tax laws and how much help those laws ought to provide. “The ‘task of classifying persons for . . . benefits ... inevitably requires that some persons who have an almost equally strong claim to favored treatment be placed on different sides of the line,’ and the faсt the line might have been drawn differently at some points is a matter for legislative, rather than judicial, consideration.” Id., at 179 (citation omitted). See also ibid. (judicial review is “at *109 an end” once the court identifies a plausible basis on which the legislature may have relied); Nordlinger, supra, at 17-18.
Once one realizes that not every provision in a law must share a single, objective, one has no difficulty finding the necessary rational support for the 20 percent/36 percent differential here at issue. That difference, harmful to the racetracks, is helpful to the riverboats, which, as respondents concede, were also facing financial peril, Brief for Respondents 8. See also
Respondents argue that
Allegheny Pittsburgh Coal Co.
v.
Commission of Webster Cty.,
IV
We conclude that there is “a plausible policy reаson for the classification,” that the legislature “rationally.may have . . . considered ... true” the related justifying “legislative facts,” and that the “relationship of the classification to its goal is not so attenuated as to render the distinction arbitrary or irrational.” Id., at 11. Consequently the State’s differential tax rate does not violate the Federal Equal Protection Clause. The Iowa Supreme Court’s judgment to the contrary is reversed, and the case is remanded for further proceedings not inconsistent with this opinion.
So ordered.
