Key keywords: Alabama redistricting, US Supreme Court, Voting Rights Act, racial gerrymandering, 2024 US congressional elections, minority voting power, congressional district map, election chaos In a 5-4 ruling issued earlier this month, the U.S. Supreme Court rejected Alabama’s revised congressional redistricting plan for the second time in 10 months, finding that the state’s Republican-led legislature still failed to create a second majority-Black congressional district as required by the 1965 Voting Rights Act (VRA). The ruling marks a rare rebuke of state-level election authority from the conservative-dominated court, and legal and political experts are warning that it could trigger widespread electoral instability across the U.S. ahead of the 2024 general election. Back in June 2023, the Supreme Court first ruled that Alabama’s original 2022 congressional map illegally diluted the voting power of Black residents, who make up 27% of the state’s population but were only represented in 1 of the state’s 7 congressional districts. The court ordered the state to redraw the map to include a second district where Black voters make up a majority of the voting-age population, to ensure their preferred candidates have a fair chance of winning. Alabama’s legislature submitted a revised map last fall, but civil rights groups challenged it, arguing that the new map only increased Black voting share in one additional district to 48%, short of the majority requirement, and still packed Black voters into a single deep-blue district to limit their influence elsewhere. The Supreme Court’s latest ruling upholds a lower court’s order that a special court-appointed master will draw the state’s final congressional map for 2024. But experts point out that the decision sets a precedent that will spur dozens of similar lawsuits across at least 6 other states including Georgia, Louisiana, Texas, and Florida, where Republican-led legislatures have been accused of racial gerrymandering to limit minority voting power. With less than 8 months left before the 2024 general election, and primary elections already scheduled in many states for March and April, the wave of pending redistricting lawsuits means that hundreds of congressional candidates may not know the boundaries of their districts until weeks before filing deadlines, while millions of voters could be reassigned to new districts at the last minute, leading to widespread confusion at polling places. Civil rights groups have celebrated the ruling as a critical win for voting rights, but even advocates acknowledge that the compressed timeline will create significant logistical challenges. Many Republican officials, meanwhile, have decried the ruling as federal overreach, with some state legislators promising to pass new laws to push back against court-ordered redistricting changes, raising the risk of prolonged legal battles that could delay election results or lead to contested outcome certifications after votes are cast. With the House of Representatives currently controlled by Republicans by a margin of just 3 seats, even small changes to district maps in competitive states could shift control of the chamber in 2024, raising the stakes for every ongoing redistricting lawsuit across the country.