A Republican-led legal challenge aims to reshape a core protection of the Voting Rights Act by targeting a provision that bans racial discrimination in redistricting. The case, now before the Supreme Court, holds weighty implications for future congressional control.

A federal appeals court has chosen not to strike down a key provision of the Voting Rights Act, spurring Louisiana officials to seek a stay. The state hopes the Supreme Court will resolve the matter in a related redistricting case scheduled for October.