Miscellaneous interstate conflict: Supreme Court decisions

Every U.S. Supreme Court decision from the 1946 through 2025 Terms that the Supreme Court Database classifies under the issue “Miscellaneous interstate conflict,” part of the Interstate Relations area.

Legal provisions most often involved

All 24 decisions, newest first

• Texas v. New Mexico and Colorado
  144 S. Ct. 1756Decided June 21, 20245–4Ketanji Brown Jackson
• New York v. New Jersey
  598 U.S. 218Decided April 18, 20239–0Brett M. Kavanaugh
• Mississippi v. Tennessee
  142 S. Ct. 31Decided November 21, 20219–0John G. Roberts Jr.
• Texas v. New Mexico and Colorado
  138 S. Ct. 954Decided March 5, 20189–0Neil M. Gorsuch
• Montana v. Wyoming
  138 S. Ct. 758Decided February 20, 20188–0
• Kansas v. Nebraska and Colorado
  574 U.S. 445Decided February 24, 20156–3Elena Kagan
• Franchise Tax Board of California v. Gilbert P. Hyatt
  538 U.S. 488Decided April 23, 20039–0Sandra Day O'Connor
• Kenneth Lee Baker and Steven Robert Baker v. General Motors Corporation
  522 U.S. 222Decided January 13, 19989–0Ruth Bader Ginsburg
• State of Texas v. State of New Mexico
  485 U.S. 388Decided March 28, 19888–0
• Simons v. Miami Beach First National Bank
  381 U.S. 81Decided May 3, 19657–2William J. Brennan Jr.
• Aldrich v. Aldrich
  378 U.S. 540Decided June 22, 19649–0Per curiam
• Armstrong v. Armstrong
  350 U.S. 568Decided April 9, 19569–0Sherman Minton
• Sutton v. Leib
  342 U.S. 402Decided March 3, 19528–1Stanley F. Reed
• Cook v. Cook
  342 U.S. 126Decided December 3, 19518–1William O. Douglas
• West Virginia ex Rel. Dyer v. Sims
  341 U.S. 22Decided April 9, 19519–0Felix Frankfurter
• Johnson v. Muelberger
  340 U.S. 581Decided March 12, 19517–1Stanley F. Reed
• Union National Bank v. LambLaw held unconstitutional
  337 U.S. 38Decided May 16, 19496–3William O. Douglas
• Rice v. Rice
  336 U.S. 674Decided April 18, 19495–4Per curiam
• Estin v. Estin
  334 U.S. 541Decided June 7, 19487–2William O. Douglas
• Kreiger v. Kreiger
  334 U.S. 555Decided June 7, 19487–2William O. Douglas
• Order of United Commercial Travelers of America v. WolfeLaw held unconstitutional
  331 U.S. 586Decided June 9, 19475–4Harold H. Burton
• New York ex Rel. Halvey v. Halvey
  330 U.S. 610Decided March 31, 19479–0William O. Douglas
• Industrial Commission of Wisconsin v. McCartin
  330 U.S. 622Decided March 31, 19479–0Frank Murphy
• Morris v. Jones
  329 U.S. 545Decided January 20, 19476–3William O. Douglas

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