Federal judges on Tuesday temporarily blocked Alabama’s plan to use a new congressional map that could give Republicans an advantage in a key House race in the midterm elections.

A three-judge panel in the state’s long-running redistricting case issued the preliminary injunction that prevents the state, at least for now, from switching maps. It requires the state to continue using the same court-ordered districts under which congressional representatives were elected in 2024.

Lawyers representing Black voters in the state’s lengthy redistricting case had sought the preliminary injunction, arguing the same panel in 2023 found the state map was intentionally discriminatory against Black voters. They also argued Alabama was creating chaos by trying to change lines in the middle of an election year.

The ruling was a defeat for state Republicans who want to use a map for the November midterms that will give the GOP a chance to reclaim the seat now held by Democratic Rep. Shomari Figures. However, the state could appeal the ruling to the U.S. Supreme Court.

The court order is the latest development in the twisting legal and political saga following a U.S. Supreme Court ruling that struck down a Black-majority district in Louisiana and weakened the federal Voting Rights Act. That ruling has led Republicans in several Southern states, including Alabama, to take steps to reshape voting districts with large minority populations that have elected Democrats.

The redistricting frenzy is part of a broader push by President Donald Trump to try to hold on to Republicans’ slim House majority in the November elections.

Kim Chandler And David A. Lieb, The Associated Press