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Cox v. Louisiana

379 U.S. 536 · Decided January 18, 1965 · Supreme Court of the United States

Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.

At a glance

Cox v. Louisiana was decided on January 18, 1965 unanimously (9–0). The Court reversed the lower court's decision. Justice Arthur J. Goldberg wrote the opinion of the Court. SCDB classifies its main issue as “Protest demonstrations” in the First Amendment area. SCDB records that the Court declared a state or territorial law, regulation or constitutional provision unconstitutional.

Read the opinion

Case details

Citations
379 U.S. 536 · 85 S. Ct. 453 · 13 L. Ed. 2d 471 · 1965 U.S. LEXIS 2008
Docket number
24
Decided
January 18, 1965
Argued
October 21, 1964
Court era
Warren Court
Decision type
Opinion of the Court (orally argued)
Disposition
Reversed
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
9–0 (unanimous)
Majority opinion
Arthur J. Goldberg
Opinion assigned by
Earl Warren
How the case arrived
Appeal
Issue area
First Amendment
Legal provision
First Amendment (speech, press, and assembly)
Type of law
Constitutional amendment
Held unconstitutional
A state or territorial law, regulation or constitutional provision
Decision direction (SCDB)
Liberal what this means

How the Justices voted

JusticeVoteSeparate writing
Justice Hugo L. BlackSpecial concurrenceWrote an opinion
Justice William O. DouglasMajority
Justice Tom C. ClarkSpecial concurrenceWrote an opinion
Chief Justice Earl WarrenMajority
Justice John M. Harlan IISpecial concurrence
Justice William J. Brennan Jr.Majority
Justice Potter StewartMajority
Justice Byron R. WhiteSpecial concurrenceWrote an opinion
Justice Arthur J. GoldbergMajorityWrote an opinion

Full case caption

Cox v. Louisiana

SCDB identifiers: case 1964-034, docket 1964-034-01.

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error