Mckesson v. Doe
Decided November 2, 2020. The Court ruled per curiam, an unsigned opinion of the Court.
Docket 19-1108 · 592 U.S. 1 (2020) · Cited 70 times
Holding
Under the unusual circumstances of this case, the Fifth Circuit should not have ventured into such an uncertain area of state tort law without first using state certification procedures to seek guidance from the Louisiana Supreme Court.
The Court’s statement of the holding, from the opinion’s syllabus. The syllabus is prepared by the Reporter of Decisions and is not part of the opinion of the Court. Read the official opinion for authority.
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.
- Lehman Brothers v. Schein · 416 U.S. 386 (1974)
- National Ass'n for the Advancement of Colored People v. Claiborne Hardware Co. · 458 U.S. 886 (1982)
- Bellotti v. Baird · 428 U.S. 132 (1976)
- Arizonans for Official English v. Arizona · 520 U.S. 43 (1997)
- Tafflin v. Levitt · 493 U.S. 455 (1990)
- Clay v. Sun Ins. Office Ltd. · 363 U.S. 207 (1960)
Official text
Read the official opinion (PDF, supremecourt.gov)
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Source: Supreme Court of the United States, slip opinions (2020). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).