1. Baker v. carr;369 U.S. 186, 1962, case on legislative apportionment and justiciability
2. Wesberry v. sanders;376 U.S. 1, 1964, case on equal represen-tation for congressional districts
3. Reynolds v. sims;377 U.S. 533, 1964, case on apportionment of state legislative districts
4. Rucho v. common cause;588 U.S. 557, 2019, case on partisan gerrymandering and justiciability