Alabama residents will make their choice for U.S. Congress during the May 19 primary, and officials are urging people to vote despite an ever-evolving situation surrounding the state's congressional maps.

The Missouri Supreme Court enacted the state’s Republican-drawn gerrymander on Tuesday, allowing it to likely take effect for the midterms by handing the GOP victories on two major redistricting cases.

Alabama will hold a special primary election for four of its seven congressional districts, after the Supreme Court cleared the way — and as redistricting ripples through the South.