Colorado v. New Mexico et al.
Decided December 13, 1982. Thurgood Marshall delivered the opinion of the Court.
Docket 80 ORIG · 459 U.S. 176 (1982)
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 9–0.
Majority · 5
- Thurgood Marshall · delivered the opinion of the Court
- Byron Raymond White
- Harry Andrew Blackmun
- William Hubbs Rehnquist
- William Joseph Brennan Jr.
Concurring · 4
- John Paul Stevens
- Lewis Franklin Powell Jr.
- Sandra Day O'Connor · filed a concurring opinion
- Warren Earl Burger · filed a concurring 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).