"On Monday, the Supreme Court heard oral argument in Louisiana v. Callais, an important battle over Black voters’ electoral power under Louisiana’s congressional map. In the lower courts, seven judges from across the ideological spectrum concluded that Louisiana’s map needed to include two majority-Black districts to remedy a prior violation of the Voting Rights Act. But during Monday’s arguments, a number of conservative justices indicated that the inclusion of those two districts may now make the map unconstitutional. And, even more troublingly, the conservative supermajority’s questions made clear that Louisiana’s remedial map may not be the only thing in danger: The Voting Rights Act itself may also be on the line."