The Supreme Court just handed Democrats a massive victory in their quest to retake the House of Representatives in 2024. In a 5-4 decision that was as surprising as it was consequential, the high court agreed with a lower court’s ruling that the Voting Rights Act requires Alabama to draw a second predominantly Black congressional district.

Not only does that mean Democrats will very likely gain a seat in Alabama next year, but the decision will probably also force other states to redraw their congressional maps as well. And with Democrats needing to flip only five House seats in 2024 to win the majority,1 this decision could be the difference between Republican and Democratic control of the House.