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Federalism
State vs. federal power and the commerce clause
1832
Worcester v. Georgia
Federal government has exclusive authority over Native American affairs
1995US Term Limits v. Thornton
States can't impose congressional term limits
2007Massachusetts v. EPA
EPA must regulate greenhouse gases under Clean Air Act
2012NFIB v. Sebelius
ACA individual mandate upheld as tax, not commerce power
2019Rucho v. Common Cause
Political gerrymandering is non-justiciable
2022West Virginia v. EPA
EPA can't regulate power plant emissions without clear authorization
More Federalism Cases from the Database
Results from 486,000+ Supreme Court cases in the TheSource database.