Morton, Secretary of the Interior, et al. v. Mancari et al.

Decided June 17, 1974. Harry Andrew Blackmun delivered the opinion of the Court.

Docket 73-362 · 417 U.S. 535 (1974) · Cited 1,878 times

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.

“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.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• Board of County Commissioners v. Seber · 318 U.S. 705 (1943)
• Bolling v. Sharpe · 347 U.S. 497 (1954)
• Morton v. Ruiz · 415 U.S. 199 (1974)
• Williams v. Lee · 358 U.S. 217 (1959)
• McClanahan v. Arizona State Tax Commission · 411 U.S. 164 (1973)
• United States v. Borden Co. · 308 U.S. 188 (1939)
• United States v. Kagama · 118 U.S. 375 (1886)
• Mescalero Apache Tribe v. Jones · 411 U.S. 145 (1973)
• Posadas v. National City Bank · 296 U.S. 497 (1936)
• Georgia v. Pennsylvania Railroad · 324 U.S. 439 (1945)
• Bulova Watch Co. v. United States · 365 U.S. 753 (1961)
• Rodgers v. United States · 185 U.S. 83 (1902)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Rice v. Cayetano · 528 U.S. 495 (2000)
• United States v. Antelope · 430 U.S. 641 (1977)
• Watt v. Alaska · 451 U.S. 259 (1981)
• National Ass'n of Home Builders v. Defenders of Wildlife · 551 U.S. 644 (2007)
• Haaland v. Brackeen · 599 U.S. 255 (2023)
• Tennessee Valley Authority v. Hill · 437 U.S. 153 (1978)
• Regents of the University of California v. Bakke · 438 U.S. 265 (1978)
• Adarand Constructors, Inc. v. Pena · 515 U.S. 200 (1995)
• Epic Systems Corp. v. Lewis · 584 U.S. 497 (2018)
• Radzanower v. Touche Ross & Co. · 426 U.S. 148 (1976)
• Delaware Tribal Business Committee v. Weeks · 430 U.S. 73 (1977)
• Colorado River Water Conservation District v. United States · 424 U.S. 800 (1976)
• Law v. Siegel · 571 U.S. 415 (2014)
• Moe v. Confederated Salish & Kootenai Tribes of the Flathead Reservation · 425 U.S. 463 (1976)
• Traynor v. Turnage · 485 U.S. 535 (1988)
• Branch v. Smith · 538 U.S. 254 (2003)
• Adoptive Couple v. Baby Girl · 570 U.S. 637 (2013)
• Smith v. Robinson · 468 U.S. 992 (1984)
• Fullilove v. Klutznick · 448 U.S. 448 (1980)
• Andrus v. Glover Construction Co. · 446 U.S. 608 (1980)
• Carcieri v. Salazar · 555 U.S. 379 (2009)
• Antoine v. Washington · 420 U.S. 194 (1975)
• J. E. M. Ag Supply, Inc. v. Pioneer Hi-Bred International, Inc. · 534 U.S. 124 (2001)
• Washington v. Davis · 426 U.S. 229 (1976)
• United States v. Mitchell · 445 U.S. 535 (1980)
• Jett v. Dallas Independent School District · 491 U.S. 701 (1989)
• Brown v. General Services Administration · 425 U.S. 820 (1976)
• Santa Clara Pueblo v. Martinez · 436 U.S. 49 (1978)
• Crawford Fitting Co. v. J. T. Gibbons, Inc. · 482 U.S. 437 (1987)
• Ruckelshaus v. Monsanto Co. · 467 U.S. 986 (1984)

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). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).