Supreme Court of the United States / October Term 1979

Idaho Ex Rel. Evans, Governor of Idaho, et al. v. Oregon et al.

Decided January 21, 1980. William Hubbs Rehnquist delivered the opinion of the Court.

Docket 67 ORIG · 444 U.S. 380 (1980)

We don’t yet publish a summary of this opinion. Read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 7–2.

Majority · 7

William Hubbs Rehnquist · delivered the opinion of the Court
Byron Raymond White
Harry Andrew Blackmun
John Paul Stevens
Lewis Franklin Powell Jr.
Warren Earl Burger
William Joseph Brennan Jr.

Dissenting · 2

Potter Stewart · filed a dissenting opinion
Thurgood Marshall · filed a dissenting opinion

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Data last verified 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).