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BAKER v. CARR. 186 Opinion of the Court. tion of the Subject Matter" we hold only that the matter set forth in the complaint does arise under the Constitution and is within 28 U. S. C. § 1343. Article III, § 2, of the Federal Constitution provides that "The judicial Power shall extend to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under their Authority . . . ." It is clear that the cause of action is one which "arises under" the Federal Constitution. The complaint alleges that the 1901 statute effects an apportionment that deprives the appellants of the equal protection of 'the laws in violation of the Fourteenth Amendment. Dismissal of the complaint upon the ground of lack of jurisdiction of the subject matter would, therefore, be justified only if that claim were "so attenuated and unsubstantial as to be absolutely devoid of merit," Newburyport Water Co. v. Newburyport, 193 U. S. 561, 579, or "frivolous," Bell v. Hood, 327 U. S. 678, 683.1' That the claim is unsubstantial must be "very plain." Hart v. Keith Vaudeville Exchange, 262 U. S. 271, 274. Since the District Court obviously and correctly did not deem the asserted federal constitutional claim unsubstantial and frivolous, it should not have dismissed the complaint for want of jurisdiction of the subject matter. And of course no further consideration of the merits of the claim is relevant to a determination of the court's jurisdiction of the subject matter. We said in an earlier voting case from Tennessee: "It is obvious . . . that the court, in dismissing for want of jurisdiction, was controlled by what it deemed to be the want of merit in the averments which were made in the complaint as to the violation of the Federal right. But as the very nature of the controversy was Federal, and, therefore, 17 The accuracy of calling even such dismissals "jurisdictional" was questioned in Bell v. Hood. See 327 U. S., at 683.

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Baker v. Carr

Judgment

Question Presented: Whether a claim alleging that a state's legislative apportionment scheme violates the Equal Protection Clause of the Fourteenth Amendment — by diluting the voting power of citizens in overpopulated districts — presents a justiciable controversy or is a non-justiciable "political question" that federal courts lack authority to adjudicate. This issue required the Court to revisit and overturn the precedent of Colegrove v. Green, 328 U.S. 549 (1946), which had held that federal courts should not intervene in reapportionment disputes.

Alleged Acts: Tennessee had not reapportioned its state legislative districts since 1901, despite a constitutional requirement to do so every ten years and despite dramatic population shifts over the intervening decades. By the 1960s, the state's legislative districts were severely malapportioned: some districts had populations over ten times larger than others, meaning rural voters were vastly overrepresented while urban voters were underrepresented. For example, a voter in a rural district had roughly ten times the voting power of a voter in an urban district like Memphis or Nashville. A group of Tennessee voters, led by Charles Baker (a Republican voter from Shelby County), sued Joe Carr, the Tennessee Secretary of State, in federal court. Baker alleged that the failure to reapportion violated the Equal Protection Clause of the Fourteenth Amendment by diluting the votes of urban residents. The suit sought to have the apportionment declared unconstitutional and to compel the state to reapportion.

Procedural history: The district court dismissed the complaint, holding that reapportionment was a non-justiciable political question beyond the authority of federal courts.

Summary: Baker v. Carr is one of the most consequential constitutional law decisions of the twentieth century. The Supreme Court held for the first time that challenges to state legislative apportionment under the Equal Protection Clause are justiciable — they do not present non-justiciable political questions. By ruling that federal courts have the authority to review and remedy malapportionment, the Court overturned the prior precedent of Colegrove v. Green (1946) and opened the door to the "reapportionment revolution" of the 1960s. The decision established that the Equal Protection Clause provides judicially manageable standards for evaluating vote dilution claims, and that voters whose votes are diluted by malapportioned districts have standing to sue. The case laid the constitutional foundation for the "one person, one vote" doctrine, which was formally articulated two years later in Reynolds v. Sims (1964). Together, Baker and Reynolds transformed American democracy by requiring legislative districts to be drawn based on substantially equal population, ending the rural-dominated legislatures that had persisted for decades despite massive urban population growth.

Conclusion: In a 6–2 decision, the Supreme Court reversed the district court's dismissal and held that legislative apportionment challenges under the Equal Protection Clause are justiciable — they do not present non-justiciable political questions. The Court held that the Equal Protection Clause provides a judicially manageable standard for evaluating apportionment claims, distinguishing them from cases involving the Guaranty Clause (Article IV, § 4), which had been held non-justiciable in Luther v. Borden. The Court explained that unlike the Guaranty Clause — which involves questions of republican government that lack judicially manageable standards — Equal Protection claims are governed by familiar and well-developed legal standards. The Court identified six characteristics of political questions (textual commitment to another branch, lack of judicially manageable standards, inability to decide without a policy determination, etc.) and concluded that none applied to Equal Protection apportionment claims. The Court emphasized that the claim was not based on the Guaranty Clause but on the Fourteenth Amendment, which provides an independent constitutional basis for judicial review.

Legal Issue(s)

Electoral Maps and Districting
Voters' Rights

Applicable Law(s): Fourteenth Amendment and Article III of the United States Constitution

Region: Americas

Country: United States of America

Language of Decision

English

Court: Supreme Court

Election Type: General

Date of decision: Mar 26, 1962

Geolocation

Latitude: 38.890591

Longitude: -77.004745

: Geolocation

Link: https://tile.loc.gov/storage-services/service/ll/usrep/usrep369/usrep369186/usrep369186.pdf

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Baker v. Carr.pdf
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Baker v. Carr

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