Appeals court ruling tees up Supreme Court battle for new Missouri map

A federal appeals court in Missouri on Monday ruled that the state’s newest congressional map must be used in the November elections, setting the issue up for another hearing before the Supreme Court.

The battle over the state’s new map, which favors Republicans and was passed by the legislature in 2025, has persisted for months. Critics believe it should be passed by voters in a statewide referendum before use and that the old 2022 maps should be used for the November election.