Plaintiffs are residents and qualified voters of a community known as Tortolita, located in Pima County, Arizona. In 1997, an overwhelming majority of Tortolita’s qualified voters petitioned the Pima County Board of Supervisors to incorporate Tortolita as a new municipality. Arizona law, however, prohibits the incorporation of a community unless all existing municipalities of 5,000 or more inhabitants within six miles of the community’s boundaries give their prior consent. See Ariz.Rev. Stat. § 9-101.01. The City of Tucson and the Towns of Maraña and Oro Valley (“Defendants”) each has 5,000 or more inhabitants and lies within six miles of the boundaries of Tortolita. All three municipalities have opposed Tortolita’s incorporation. Plaintiffs brought the present § 1983 action against Defendants, claiming that the cоnsent requirement of § 9-101.01 violates the Equal Protection Clause of the Fourteenth Amendment because it unjustifiably burdens their right to vote on municipal incorporation.
We hold that § 9-101.01 does not violate equal protection and affirm the district court’s grant of summary judgment in favor of Defendants. Although Arizona has created a constitutionally protected right to vote on municipal incorporation, § 9-101.01 does not unconstitutionally burden that right. In the absence of a suspect classification, the Supreme Court has applied strict scrutiny only to voting regulations that prohibit some residents in a given electoral unit from voting, or that dilute the voting power of some residents in a given electoral unit. Section 9-101.01 is not analogous to either of these two types of voting regulations because it treats all residents of the relevant electoral unit, Tortolita, equally. Section 9-101.01 admittedly draws geographical distinctions between those unincorporated communities that are near existing municipalities and those that are not, but we decline to extend strict scrutiny to this type of voting regulation. We conclude that § 9-101.01 is rationally related to Arizona’s legitimate interest in regulating the establishment of new municipalities and in protecting the interests of existing ones.
FACTUAL AND PROCEDURAL BACKGROUND
The facts of this case are undisputed.
Before 1961, the sаme incorporation procedures applied to all unincorporated communities across the state, regardless of their proximity to existing municipalities. See Ariz.Rev.Stat. § 9-101(B) (1956). In 1961, however, the Arizona legislature added a statutory proviso for communities “within six miles of an incorporated city or town ... having a population of five thousand or more.” Ariz.Rev.Stat. § 9-101.01(A). Section 9-101.01 designates such communities as “urbanized areas” and prohibits the board of supervisors from acting on a petition to incorporate urbanized areas unless nearby municipalities give their prior consent.
The unincorporated community of Torto-lita is located in Pima County, Arizona, and lies within six miles of three municipalities, each with 5,000 or more inhabitants: the City of Tucson and the Towns of Maraña and Oro Valley. Under § 9-101.01(B)(1), then, the residents of Tortoli-ta must secure the consent of these municipalities in order to incorporate. In April 1997, the Arizona Legislature passed a statute suspending § 9-101.01(B)(l)’s consent requirement in Pima County between July 21, 1997 and July 15, 1999. 1997 Ariz. Sess. Laws 204 §§ 2.
On July 21, 1997, the day the statute becamе effective, proponents of incorporation in Tortolita submitted a petition for direct incorporation to the Pima County Board of Supervisors under § 9-101(A). The petition was signed by 72 percent of Tortolita’s qualified voters, more than the two-thirds needed. That same day, Tucson brought suit in state court against the State of Arizona and Pima County claiming that the 1997 statutory suspension of the consent requirement violated state constitutional prohibitions against special or local laws. See Ariz. Const, art. 4, part 2, § 19; Ariz. Const, art. 13, § l.
On November 12, 1997, the Arizona Court of Appeals reversed the superior court judgment, holding that the 1997 statute “is an unconstitutional special and local law” and that “[n]o incorporation which has occurred pursuant to the statute is valid.” City of Tucson v. Woods,
On September 23, 1998, while state court proceedings were ongoing, Plaintiffs filed the instant § 1983 action in federal district court asserting that § 9-101.01 violates the Equal Protection Clause of the Fourteenth Amendment because it imper-missibly burdens their right to vote on municipal incorporation.
In a motion filed May 8, 2003, five days before oral argument, Plaintiffs requested that we affirm the district court’s grant of summary judgment in favor of Defendants and reserved the right to seek en banc reconsideration. Plaintiffs did not appear at oral argument. Defendants, however, did appear and opposed Plaintiffs’ motion.
STANDARD OF REVIEW
We review a grant of summary judgment de novo. Oliver v. Keller,
DISCUSSION
Plaintiffs’ sole claim is that § 9-101.01 of the Arizona Revised Statutes violates the Equal Protection Clause of the
Plaintiffs contend that strict scrutiny applies because § 9-101.01 substantially burdens their right to vote. According to Plaintiffs, § 9-101(A) has created a constitutionally protected right to vote on municipal incorporation. Although § 9-101(A) has to do with petitioning for direct incorporation rather than voting in an incorporation election, Plaintiffs argue that petitioning is the constitutional equivalent of voting, citing our decision in Hussey v. City of Portland,
Defendants do not dispute that the statute would fail strict scrutiny. They claim, however, that rational basis review applies because § 9-101.01 does not burden the right to vote. Defendants further contend that § 9-101.01 satisfies rational basis scrutiny because its geographic distinction between urbanized and non-urbanized areas is rationally related to the state’s legitimate interest in the orderly development and efficient administration of municipal government.
A. Whether Plaintiffs have a right to vote on municipal incorporation
We first address whеther Plaintiffs have a constitutionally protected right to vote on municipal incorporation. As Defendants correctly point out, there is no inherent right to-vote on municipal incorporation under the federal constitution.
We hold, in light of our decision in Hussey, that Arizona’s petition procedure for direct incorporation is sufficiently similar to voting to be treated as such for equal protection purposes. In Hussey, also an equal protection case, we considered whether Oregon’s “double majority” procedure for municipal аnnexation was constitutionally equivalent to voting.
We concluded in Hussey that the written consents of voters required undеr the double majority annexation procedure were the constitutional equivalent of votes: “Both [votes and written consents] must be returned by registered voters; both are official expressions of an elector’s will; both are required to resolve political issues; and both require a majority for success. Without the' consent of a double majority of registered voters and landowners, Portland would have had to conduct an election to annex Mid-County.” Hus-sey,
The same reasoning compels us to conclude that signatures on a petition for direct incorporation under Ariz.Rev.Stat. § 9-101(A) are the constitutional equivalent of votes. Like a vote on a ballot, a signature on a petition is an expression of a registered voter’s will. And like an election, the petition process requires a majority for success, albeit a two-thirds majority. Furthermore, the petition process serves as a substitute for an election. If
B. Whether strict or rational basis scrutiny applies
Next, we must consider whether § 9-101.01 substantially burdens the right to vote on municipal incorporation, thereby requiring the application of strict scrutiny.
Contrary to Plaintiffs’ claims, § 9-101.01 is not analogous to either of these types of regulations. Both the Dunn and Moore lines of cases are concerned with the equal treatment of voters within the governmental unit holding the election, be it a school district, a city or a state. See, e.g., Dunn,
In this case, the relevant electoral unit is Tortolita — not Pima County as Plaintiffs claim. Only residents and qualified voters of Tortolita, not Pima County generally, may petition for Tortolita’s direct incorporation under § 9-101(A) or for an incorporation election under § 9-101(B). And if an election were held on Tortolita’s incorporation, it would be held in Tortolita only, not across Pima County. Therefore, our equal protection inquiry must focus on Tortolita rather than Pima County. We must ask whether some voters of Tortоlita are prohibited from voting while others are not, or whether the votes of Tortolita residents are given unequal weight.
Once the relevant electoral unit is identified as Tortolita, it becomes clear that § 9-101.01 does not merit the application of strict scrutiny. It is undisputed Tortolita’s qualified voters are treated equally with respect to the right to vote on municipal incorporation. They each have an equal say in a petition for direct incorporation. Unlike the statutes at issue in Supreme Court’s voting rights cases, § 9-101.01 does not prohibit some Tortolita residents from voting while allowing others to do so, nor does it give the votes of some Tortolita residents unequal weight. All Tortolita residents are equally subject to § 9-101.01’s consent requirement: none of their petition signatures for direct incorporation under § 9-101(A) has any force or effect unless Tucson, Maraña and Oro Valley first consent to Tortolita’s incorporation.
Section 9-101.01 undoubtedly discriminates, but it discriminates between different electoral units based on their proximity to existing municipalities, rather than between voters in any single electoral unit. The Supreme Court has never applied strict scrutiny to this type of voting regulation, and we decline to do so here. The Supreme Court has long recognized that
Municipal corporations are political subdivisions of the State, created as convenient agencies for exercising such of the governmental powers of the State as may be entrusted to them. For the purpose of executing these powers properly and efficiently they usually are given the power to acquire, hold, and manage .personal and real property. The number, nature, and duration of the powers conferred upon these corporations and the territory over which they shall be exercised rests in the absolute discretion of the state.... The state, therefore, at its pleasure, may modify or withdraw all such powers, may take without compensation such property, hold it itself, or vest it in other agencies, expand or contract the territorial area, unite thе whole or a part of it with another municipality, repeal the charter and destroy the corporation. All this may be done, conditionally or unconditionally, with or without the consent of the citizens, or even against their protest. In all these respects the state is supreme, and its legislative body, conforming its action to the state constitution, may do as it will, unrestrained by any provision of the Constitution of the United States.
Hunter v. City of Pittsburgh,
Holt involved an equal protection challenge to state statutes that subjected an unincorporated area to the police powers of Tuscaloosa, the neighboring municipality, without granting residents of the unincorporated area the right to vote in Tuscaloosa elections. Id. at 61-62,
While the broad statements as to state control over municipal corporations contained in Hunter have undoubtedly been qualified by the holdings of later cases such as Kramer v. Union Free School Dist., we think that the case continues to have substantial constitutional significance in emphasizing the extraordinarily wide latitude that States have in creating various types of political subdivisions and conferring authority upon them.
Id. at 71,
By enacting § 9-101.01, Arizona delegated some of its control over municipal subdivisions to existing municipalities by authorizing them to veto the incorporation of nearby communities. Tucson, Maraña and Oro Valley have each exercised the veto granted to them by Arizona in order tо prevent the incorporation of Tortolita. Apart from their claim that the veto vio
We draw further support for the application of rational basis review from the Supreme Court’s summary affirmance in Adams v. City of Colorado Springs,
[I]t does not appear that the plaintiffs’ rights are of the kind that have been upheld by the Supreme Court. The factor present in the cited cases which appears to have been crucial is that the franchise was granted to one group of persons to the detriment of another group. In most instances one group had votes with disproportionate weight as opposed to a group which was partially or wholly disenfranchised, or there has been а purposeful juggling of boundaries for the purpose of excluding a particular group- In the case at bar ... it cannot be said that there exists the invidious discrimination which has been heretofore condemned by the Supreme Court. Hence, the only question which qualifies for consideration is whether the Assembly’s classification is palpably irrational and, hence, constitutionally intolerable.
Id. at 1403 (footnote omitted). The district court applied rational basis scrutiny and upheld the annexation statute’s constitutionality.
As Plaintiffs correctly point out, “a summary affirmance by [the Supreme] Court is ‘a rather slender reed’ on which to rest future decisions.” Morse v. Republican Party of Va.,
C. Applying rational basis scrutiny
Plaintiffs do not argue that § 9-101.01 fails rational basis scrutiny, and
CONCLUSION
Arizona has created a constitutionally protected right to vote on municipal incorporation. The Supreme Court’s equal protection voting rights cases require that the residents of a given unincorporated community be treated equally with respect to the right to vote on incorporation. The state cannot unreasonably prevent some residents of the community from voting, nor can it dilute the voting power of some residents. Section 9-101.01 does not infringe these requirements, and therefore rational basis scrutiny applies. Arizona has a legitimate interest in the orderly development of municipal government, and § 9-101.01 is rationally related to that end. We therefore uphold § 9-101.01 as constitutional.
AFFIRMED.
Notes
. The suit was initially brought against Tucson. Maraña and Oro Valley subsequently intervened as additional defendants alongside Tucson.
. Many of the relevant facts are also recounted in our previous en banc opinion in this case. See Green v. City of Tucson,
.Several other states have similar statutory provisions enabling "a municipality, otherwise devoid of power, to veto the incorporation of municipalities within a stated distance from the existing municipality.” George D. Vaubel, Toward Principles оf State Restraint upon the Exercise of Municipal Power in Home Rule, 20 Stetson L. Rev. 5, 16 & n. 42 (1990). In most states, however, "[n]eigh-boring localities ... outside the boundaries of the territory proposed to be incorporated generally have no role” in the incorporation process. Richard Briffault, Our Localism: Part I — The Structure of Local Government Law, 90 Colum. L. Rev. 1, 74 (1990).
. The statute did not on its face single out Pima County, but Pima County was the only Arizona county that met the statutory criteria.
. A committee of Tortolita residents intervened as a defendant in the state court proceedings and, together with Pima County and another intervenor, counterclaimed against Tucson, arguing that the § 9-101.01(B)(1) consent requirement violates the Fourteenth
. On remand, the Superior Court reached the merits of Tortolita’s constitutional challenges to § 9-101.01’s consent requirement. The Arizona Superior Court ultimately upheld the constitutionality of § 9-101.01. The Arizona Court of Appeals subsequently affirmed and the Arizona Supreme Court denied review. City of Tucson v. Pima County,
. In their original complaint, Plaintiffs also asserted violations of the Due Process Clause and the Guaranty Clause. Plaintiffs dropped these claims in their second amended complaint, filed January 9, 2002.
.Tucson answered the federal complaint on the merits but also argued that the district court should abstain under Younger v. Harris,
. Many of the cases cited by Defendants are not relevant to the question whether Arizona has created a constitutionally protected right to vote on municipal incorporation, because in those cases the states in question had never granted a right to vote on incorporation or annexation on a statewide basis. See Barefoot v. City of Wilmington,
. Defendants argue that we are bound by the Arizona Court of Appeals’ determination that § 9-101.01(B)(1) is a mere precondition to the holding of an incorporation election and therefore does not burden the right to vote. We disagree. When deciding matters of Arizona law, we must follow the decisions of the Arizona Supreme Court. See Johnson v. Fankell,
. In their appellate briefs, Plaintiffs argued that § 9-101.01's geographic distinction between urbanized and non-urbanized areas requires the application of strict scrutiny because it burdens the voting rights of some Pima County residents but not others. However, on May 8, 2003, five days prior to oral argument, Plaintiffs changed their position. They filed a motion contending that under Columbia River Gorge United — Protecting People and Property v. Yeutter,
In Columbia River Gorge, we upheld an equal protection challenge to a federal statute that created an appointed commission to govern
Columbia River Gorge is not relevant to the question whether strict or rational basis scrutiny should apply to the Arizona statute at issue here. As we acknowledged in Columbia River Gorge, that case did not involve a state law creating a constitutionally protected right to vote because any Oregon or Washington law that might have created such a right was effectively nullified by the federal statute creating the Columbia Gorge Commission:
Insofar as the appellant argues that the Act violates electoral rights guaranteed by the state constitutions or local laws, this challenge fails. When Congress, acting within constitutional limits, creates federal law, state law is nullified to the extent that compliаnce with both the federal and the state law would be a physical impossibility.
Id. The present case, in contrast, does not involve a federal statute; rather, it involves an Arizona state law that we have determined creates a constitutionally protected right to vote on municipal incorporation.
. The Supreme Court has applied rational basis scrutiny to reasonable restrictions that exclude some residents in a given electoral unit from voting in a unit-wide election. See, e.g., Marston v. Lewis,
. Because we uphold the constitutionality of § 9-101.01, we need not address Defendants’ argument regarding the severability of that statutory provision from § 9-101.
