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Baker v. Carr

No. 6 SCOTUS · Teaching/Historical SCOTUS
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The Law · How the Case Works

Overview

Overview

The Supreme Court held that federal courts have jurisdiction to hear apportionment challenges and that legislative malapportionment raises justiciable constitutional claims.

The Facts

Facts

Tennessee voters challenged the state legislature's apportionment scheme, which had not been redrawn since 1901 despite significant population shifts, causing severe vote dilution in urban areas. The case reached federal court after state remedies proved futile. Lower courts dismissed on grounds that apportionment was a nonjusticiable political question.

The Issue

Issue

Whether a state's legislative apportionment of seats in a state legislature constitutes a justiciable question under the Constitution, or whether challenges to legislative malapportionment present nonjusticiable political questions beyond the reach of federal courts.

The Rules

Rule

Baker v. Carr, 369 U.S. 186 (1962), held that claims of legislative malapportionment under the Equal Protection Clause are justiciable and may be heard by federal courts, overruling earlier precedent that had treated apportionment as a political question. Baker established the six-factor test for the political question doctrine. Reynolds v. Sims, 377 U.S. 533 (1964), applied Baker and required legislative districts to be apportioned on a population basis. 'one person, one vote.'

The Application

Analysis

The Court applied its justiciability framework to Tennessee's apportionment scheme and found concrete, judicially manageable standards for addressing the claim. Specifically, whether the 60-year-old districts, unchanged despite massive population shifts favoring urban areas, violated the Equal Protection Clause. The failure of state political remedies and the demonstrable harm to urban voters established that this was not a matter reserved to the political branches, but rather a justiciable constitutional dispute requiring judicial resolution. By determining that apportionment claims presented manageable legal standards rather than purely political questions, the Court opened federal courts to redistricting challenges and established the foundation for the subsequent "one person, one vote" standard.

The Conclusion

Conclusion

The Court held 6-2 that apportionment challenges are justiciable controversies, overruling the political question doctrine as applied to redistricting. The decision established that federal courts could address legislative malapportionment claims and laid groundwork for the "one person, one vote" principle. This landmark ruling fundamentally altered the balance of power by enabling judicial review of state apportionment.

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SCOTUS TMR-70887086 Jul 22, 2026

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