SCOTUS rules 6-2 in Baker v. Carr that redistricting claims are justiciable under 14th Amendment

The Supreme Court rules 6-2 in Baker v. Carr that federal courts have jurisdiction to hear challenges to state legislative apportionment under the Fourteenth Amendment's Equal Protection Clause. Charles Baker, a Shelby County, Tennessee resident, had sued because Tennessee had not redistricted since 1901 despite massive population shifts, leaving rural districts with a fraction of the voters of urban districts. Chief Justice Earl Warren later called Baker the most important case of his tenure, as it unlocked a nationwide wave of redistricting litigation.