Rucho v. Common Cause

Article III permits federal courts to resolve claims of legal right using legal principles, but it does not authorize courts to decide political questions lacking judicially manageable standards. The Court treated the central problem not as identifying whether politics influenced districting—politics has always been part of redistricting—but as determining how much partisan influence is constitutionally too much.

The Constitution does not require proportional representation for political parties. A party’s statewide vote share therefore does not establish a constitutional entitlement to a corresponding share of legislative seats. Any effort to decide what share of power a party fairly deserves would require judges to choose among competing political visions of fairness rather than apply a rule grounded in constitutional text or precedent.

Other possible measures of fairness do not solve the problem. A court might favor proportionality, competitive districts, compactness, preservation of political subdivisions, or protection of incumbents, but each choice has partisan consequences and may conflict with the others. The Constitution gives no basis for ranking those criteria or determining the permissible degree of departure from any one of them.

The Court distinguished one-person-one-vote and racial-gerrymandering cases. Population equality is administrable through a relatively objective mathematical rule, while racial classifications receive special constitutional scrutiny. By contrast, political considerations in districting are not inherently unconstitutional; States may engage in some constitutional political gerrymandering.

History reinforced the Court’s conclusion. The Framers knew of partisan districting and assigned responsibility for congressional election regulations principally to state legislatures, subject to Congress’s power under the Elections Clause to make or alter those regulations. That structure did not itself make all districting disputes nonjusticiable, but it provided no indication that federal courts were authorized to allocate political power between parties.

The District Court required proof that partisan advantage was the predominant purpose behind a district, that the resulting vote dilution would likely persist, and that the State lacked a legitimate neutral explanation. The Supreme Court concluded that predominant partisan intent cannot itself establish a constitutional violation, because seeking partisan advantage is a permissible consideration in districting.

The durability inquiry was also inadequate. It asked judges to forecast future elections and determine whether a party’s advantage would persist strongly enough that elected representatives could safely disregard opposing-party voters. Electoral outcomes depend on changing candidates, issues, turnout, demographics, and voter preferences, making such predictions especially unsuitable as constitutional rules.

A burden-shifting inquiry into legitimate state interests did not cure the defect. Once the inquiry turns on whether partisan advantage was excessive, courts still need a constitutional benchmark for how much advantage is too much. The Court found no such benchmark in the Equal Protection Clause.

The challenged maps imposed no direct restriction on speech, association, voting, fundraising, campaigning, or other expressive activity. Voters remained free to participate in politics regardless of their districts’ expected partisan outcomes.

Treating districting based on political affiliation as ordinary viewpoint discrimination would effectively make any use of partisan considerations unconstitutional. That result would conflict with the Court’s recognition that political considerations are inseparable from redistricting and that some political gerrymandering is constitutionally permissible.

The lower courts’ asserted burdens—such as reduced volunteer enthusiasm, fundraising difficulties, voter apathy, and diminished political engagement—did not establish an administrable constitutional threshold. The Court found no principled way to determine how much reduced engagement constitutes a legally cognizable First Amendment injury or when a partisan advantage crosses the constitutional line.

Article I, § 2 requires Representatives to be chosen by the people, and the Elections Clause gives state legislatures authority to prescribe the times, places, and manner of congressional elections while reserving to Congress the power to make or alter those regulations. Neither text establishes a substantive judicial standard for deciding the permissible degree of partisan influence in drawing district lines.

The Court rejected the lower court’s conclusion that partisan gerrymandering exceeds a state legislature’s Elections Clause authority or prevents the people from choosing their representatives within the meaning of Article I, § 2. Prior precedent had not recognized either provision as imposing a judicially enforceable limit on political considerations in districting.

Although the principle that voters should choose their representatives rather than the reverse reflects important democratic values, the Court concluded that it did not create a federal judicial remedy here. The Constitution’s express institutional remedy for congressional districting abuses is Congress’s power under the Elections Clause, not federal courts’ creation of a free-floating fairness rule.