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United States v. O'Brien

391 U.S. 367 · Decided May 27, 1968 · 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

United States v. O'Brien was decided on May 27, 1968 by a vote of 7–1. The Court vacated the lower court's decision. Chief Justice Earl Warren wrote the opinion of the Court. SCDB classifies its main issue as “Protest demonstrations” in the First Amendment area.

Read the opinion

Case details

Citations
391 U.S. 367 · 88 S. Ct. 1673 · 20 L. Ed. 2d 672 · 1968 U.S. LEXIS 2910
Docket number
232
Decided
May 27, 1968
Argued
January 24, 1968
Court era
Warren Court
Decision type
Opinion of the Court (orally argued)
Disposition
Vacated
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
7–1
Majority opinion
Earl Warren
Opinion assigned by
Earl Warren
How the case arrived
Certiorari
Issue area
First Amendment
Legal provision
Selective Service statutes
Type of law
Federal statute
Decision direction (SCDB)
Conservative what this means

How the Justices voted

JusticeVoteSeparate writing
Justice Hugo L. BlackMajority
Justice William O. DouglasDissentWrote an opinion
Chief Justice Earl WarrenMajorityWrote an opinion
Justice John M. Harlan IIConcurrenceWrote an opinion
Justice William J. Brennan Jr.Majority
Justice Potter StewartMajority
Justice Byron R. WhiteMajority
Justice Abe FortasMajority

Did not participate: Thurgood Marshall.

Full case caption

United States v. O'Brien

SCDB identifiers: case 1967-135, docket 1967-135-01.

Other cases on “Protest demonstrations”

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Cases on the same legal provision: Selective Service statutes

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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