What are the facts?
Rucho consolidated two challenges to congressional maps in North Carolina and Maryland. In North Carolina, after a racial gerrymander was struck down, the Republican-controlled legislature adopted a 2016 remedial congressional plan that, by its own designers' admission, sought to produce a 10–3 Republican advantage in a closely divided state. A key legislator stated on the record that the intent was to create a 10–3 map because an 11–2 split was not feasible. Plaintiffs (voters and organizations) presented expert analyses—such as partisan symmetry metrics, efficiency gap, mean–median differences, and computer simulations—to show that the map systematically and durably advantaged Republicans relative to their statewide vote share. In Maryland, Democratic officials redrew the Sixth Congressional District to convert a Republican-leaning seat into a Democratic one, moving hundreds of thousands of voters and targeting Republican voters, as confirmed by deposition testimony from then-Governor O'Malley and mapmakers. Three-judge federal district courts in both cases found the maps unconstitutional under theories based on the Equal Protection Clause, the First Amendment, and Article I (Elections Clause and Qualifications Clause), and ordered remedial maps. The state defendants appealed directly to the Supreme Court.
What is the legal issue?
Do claims of partisan gerrymandering present justiciable controversies under the Constitution that federal courts can resolve, or are they nonjusticiable political questions lacking judicially discoverable and manageable standards?
What rule applies?
Partisan gerrymandering claims are nonjusticiable political questions in federal court. The Constitution assigns redistricting principally to the States, with oversight by Congress under the Elections Clause (U.S. Const. art. I, § 4), and provides no judicially discoverable and manageable standard for determining when partisan influence in districting is excessive. Absent such a standard rooted in constitutional text, history, or tradition, federal courts lack authority under Article III to adjudicate these claims. See Baker v. Carr (political question factors), Vieth v. Jubelirer (plurality finding no manageable standard), and Gill v. Whitford (not reaching merits).
What did the court hold?
No. Partisan gerrymandering claims are not justiciable in federal court. The Supreme Court reversed the lower courts and remanded with instructions to dismiss for lack of jurisdiction because such claims present political questions beyond the competence of the federal judiciary.
What is the reasoning?
Chief Justice Roberts, writing for a 5–4 majority, acknowledged that extreme partisan gerrymanders are at odds with democratic principles but concluded that the Constitution does not provide a workable legal standard to distinguish permissible from impermissible levels of partisan intent or effect. Applying the political question framework from Baker v. Carr, the Court emphasized two factors: (1) a lack of judicially discoverable and manageable standards, and (2) a textually demonstrable commitment to a coordinate branch. The Court reasoned that, unlike one-person-one-vote cases (which rely on population equality) or racial gerrymandering claims (which use race as an identifiable predominant factor), partisan fairness lacks a judicially administrable baseline; the Constitution neither requires proportional representation nor furnishes a metric for when partisan considerations become unconstitutional. The Court reviewed the past decades of fractured jurisprudence. In Davis v. Bandemer, the Court nominally allowed partisan gerrymandering claims but never agreed on a standard. In Vieth, a plurality declared the claims nonjusticiable, while Justice Kennedy left open the possibility of a future standard—one that never materialized. Gill v. Whitford avoided the merits on standing grounds. The Rucho majority considered and rejected proposed metrics such as the efficiency gap and partisan symmetry, finding them policy-laden and not grounded in constitutional text or historical practice. The First Amendment retaliation theory also failed; the Court viewed it as a repackaged equal protection claim that lacked a manageable standard for determining when ordinary political considerations cross a constitutional line. The majority highlighted remedial and institutional concerns: federal court supervision of map-drawing would draw judges into inherently political disputes across thousands of districts, require them to decide acceptable degrees of partisan effect without constitutional benchmarks, and risk entrenching controversial conceptions like proportional representation. By contrast, the Constitution's structure points to political solutions: state reforms (e.g., independent commissions, state constitutional provisions) and federal legislation under the Elections Clause. The Court thus concluded that federal courts must refrain, leaving correction to the political process and to state-law constraints. Justice Kagan, joined by three Justices, dissented, arguing that workable standards exist (including intent-plus-effects tests using robust metrics) and that the Court abdicated its duty to remedy a constitutional wrong that entrenches minority rule. The majority, however, maintained that while the problem is real, the Constitution does not authorize federal courts to solve it.
Why is this case significant?
Rucho definitively closes the federal courthouse to partisan gerrymandering claims, cementing the political question doctrine's application to structural election disputes involving partisan advantage. It channels litigation and reform to state courts (under state constitutions, which often include free and fair elections clauses) and to institutional redesign (independent redistricting commissions) and preserves federal judicial review for other redistricting claims—such as one-person-one-vote, racial gerrymandering under the Equal Protection Clause, and Voting Rights Act claims. For law students, the case illustrates limits on judicial power, the importance of manageable standards, and federalism-based avenues for addressing democratic dysfunction.
Does Rucho mean partisan gerrymandering is constitutional?
No. The Court did not bless partisan gerrymandering as substantively constitutional; it held only that federal courts lack a manageable constitutional standard to adjudicate these claims. The decision leaves the problem to state courts (under state constitutions) and to Congress and state political processes.
Can plaintiffs still challenge redistricting in federal court after Rucho?
Yes, but not on a partisan gerrymandering theory. Federal courts remain open to one-person-one-vote claims, racial gerrymandering challenges under the Equal Protection Clause, and claims under the Voting Rights Act. Rucho specifically forecloses federal adjudication of claims alleging excessive partisan advantage.
What role do metrics like the efficiency gap play after Rucho?
Such metrics may be persuasive in political and state-court settings, but the Supreme Court in Rucho rejected them as federal constitutional standards because they lack grounding in text, history, or tradition and risk imposing proportional representation. They can still inform state constitutional litigation or independent commissions' work.
How does Rucho relate to Vieth v. Jubelirer and Gill v. Whitford?
Rucho is the culmination of the Court's struggle in Vieth (plurality deemed claims nonjusticiable; Kennedy left the door open) and Gill (standing decision avoiding the merits). Rucho closes the door, holding that no judicially manageable federal standard exists for partisan gerrymandering claims.
What remedies remain to address partisan gerrymandering post-Rucho?
State constitutional litigation (e.g., claims under free elections or equal protection provisions), creation of independent redistricting commissions, transparency and map-drawing reforms, and potential congressional legislation under the Elections Clause. The Court explicitly pointed to these avenues as appropriate.