[UPDATE] Missouri asks the Supreme Court to reinstate its 7-1 congressional map three days before the ballot deadline
Justice Brett Kavanaugh gave the map's opponents until Monday, Sept. 7, to answer; state law finalizes November ballots Tuesday, Sept. 8.
The filing. Missouri Attorney General Catherine Hanaway filed an emergency application at the U.S. Supreme Court on Saturday, Sept. 5, asking the justices to revive the Republican-drawn congressional map known as HB 1. The state ruling. Two days earlier, on Thursday, Sept. 3, the state's own Supreme Court had ruled the map suspended and ordered a return to the 2022 district lines for the November election. That court also put HB 1 on the November ballot as a referendum (a public vote on whether a law passed by the legislature takes effect), after opponents submitted more than 300,000 signatures. The same day, it refused to pause its own ruling while Hanaway appealed. The argument. Hanaway's filing leans on the calendar. Missourians already voted under the HB 1 lines in the August primary, she argues, so scrapping them now would upend an election already underway. "No court in American history has ever given such an extraordinary remedy, which inflicts unprecedented chaos on Missouri," the application says. (TS: Maybe on the timing, but state courts tossing congressional maps is routine — Moore v. Harper said in 2023 that they can.) What next. Kavanaugh, who handles emergency matters from Missouri's circuit, set the opponents' response for noon Monday, Sept. 7. He can rule alone or send it to all nine justices, and has not said which. Missouri says it needs an answer by Tuesday, Sept. 8, to reprogram ballots; its own reply brief is also due that day, and it has asked for a decision by Sept. 13.
PREVIOUSLY
- Dec. 2025 — Opponents filed a referendum petition against HB 1; under Missouri law a valid petition suspends the law until voters decide it.
- Aug. 2026 — Missouri held its primary using the HB 1 lines.
- Thu., Sept. 3 — The Missouri Supreme Court ruled the petition valid, restored the 2022 map for November and ordered HB 1 onto the ballot.
- Fri., Sept. 4 — The same court refused to pause its ruling during the appeal; the state went to Kavanaugh the same day.
What HB 1 would do to Missouri's eight House seats:
- Emanuel Cleaver (Rep-D Missouri) sees his Kansas City 5th District go from D+23 to R+17 under HB 1
- About 102,800 of the 300,000-plus referendum signatures were disputed; the state court declared that fight moot because enough valid names remained
- Under HB 1, all seven Republican-leaning seats carried Trump in 2024, leaving Democrats one of Missouri's eight districts
What the two maps do to Missouri's House seats:
- Current delegation under the 2022 lines: 6 Republicans, 2 Democrats
- Delegation under HB 1, by 2024 presidential results: 7 Republicans, 1 Democrat
- Rep. Emanuel Cleaver's Kansas City 5th District under HB 1: from D+23 to R+17
- Disputed signatures the state court declared moot: about 102,800 of 300,000-plus