Republicans have scored another victory in the nationwide redistricting battle. The Florida Legislature approved a new congressional map on Wednesday intended to help the party gain four seats. The vote came the same day that the U.S. Supreme Court rolled back a key provision of the Voting Rights Act. The decision could make it harder for Democrats to challenge Republican efforts to redraw congressional districts in ways that limit the influence of nonwhite voters. Florida's new map is certain to face lawsuits, especially because the state constitution prohibits redistricting for explicitly partisan purposes.