On October 4, the U.S. Supreme Court heard arguments in Merrill v Milligan, 21-1086. It lasted two hours. There will be many news stories about the oral argument. Here is the Reuters story, which isn’t very detailed. The issue is whether the 3-judge U.S. District Court was correct early this year when he invalidated the Alabama U.S. House districting plan under the federal Voting Rights Act. The 3-judge court had required Alabama to draw two districts with Black majorities, instead of just one. Then the U.S. Supreme Court had stayed that decision, in a 5-4 vote.
UPDATE: see this analysis by Professor Rick Hasen, posted at electionlawblog.
FURTHER UPDATE: here is the transcript.