Missouri Supreme Court blocks GOP congressional map, orders November referendum

The Missouri Supreme Court on Thursday blocked the state from using a newly drawn, Republican-favored congressional map in November's election, ruling unanimously that voters must be allowed to decide the map's fate at the ballot box first. The decision revives the state's 2022 congressional boundaries for this fall's midterms and sets up a direct clash with President Trump, who had pressed Missouri Republicans to redraw the lines specifically to eliminate the Kansas City-area seat held by Democratic Rep. Emanuel Cleaver.

Writing for the court, Judge Ginger K. Gooch said Secretary of State Denny Hoskins was wrong to reject a citizen referendum petition seeking to suspend the new map. "The referendum petition was legal, sufficient, and timely, and the secretary incorrectly concluded otherwise," Gooch wrote, adding that the redistricting law "did not go into effect and will not go into effect unless and until approved by the voters." The court ordered Hoskins to certify the measure for the Nov. 3 ballot and enjoined the state from using the new lines "for the November 2026 general election or at any other time thereafter" unless voters approve them.

The numbers behind the ruling

The dispute traces back to House Bill 1, passed during a September 2025 special session Governor Mike Kehoe called at the White House's urging. The bill cleared the Missouri House 90-65 and the Senate 21-11, according to the official House journal, before Kehoe signed it into law later that month. The plan redrew Missouri's eight House districts to split the Kansas City metro area across three seats, a change designed to convert Cleaver's 5th District, which he has represented for two decades, from reliably Democratic to Republican-leaning. Missouri's delegation currently splits 6-2 in favor of Republicans; the new lines were built to produce a 7-1 map.

A coalition called People Not Politicians responded by gathering more than 300,000 signatures — well beyond the roughly 106,000 required — to put the law to a statewide referendum. Hoskins rejected the petition in early August, arguing that federal and state constitutional provisions bar congressional maps from being subject to a public vote. A Cole County circuit judge, Daniel Green, upheld that rejection. The Supreme Court heard oral arguments Wednesday and reversed a day later, in an opinion joined by all seven judges.

How Missouri got here

Missouri's map fight is one thread in a broader mid-decade redistricting push that Trump encouraged across Republican-controlled states this year, aiming to offset Democratic gains elsewhere ahead of the midterms. Missouri's original 2025 map survived an earlier state Supreme Court challenge in May, when a divided 4-3 court declined to strike it down on constitutional grounds before the August primary, meaning the new district lines were used when Missouri held its primary election on Aug. 4. Thursday's ruling does not touch that earlier decision; it turns instead on a narrower question — whether Missouri's constitutional right of referendum, which allows voters to suspend "any act of the general assembly," also reaches congressional redistricting law. The court said it does, calling it the first time since 1922 that a Missouri congressional plan has gone before voters.

Who is affected, and what comes next

With the new map enjoined, the 2022 boundaries govern the November general election, meaning Cleaver runs for reelection in a district configured much as it has been for years rather than the fragmented version Republicans drew. The restored map is also expected to help Democrat Fred Wellman, who is challenging Republican Rep. Ann Wagner in the suburban St. Louis 2nd District. Candidates who ran and won August primaries under the now-blocked map, in both parties, will appear on the November ballot in the district lines that applied to their primary contest, even as the district shapes themselves revert — a mismatch state election officials have until Monday, Sept. 8, to sort out under Missouri's ballot-preparation deadline.

Attorney General Catherine Hanaway, who defended the map in court, said her office would immediately seek emergency relief from the U.S. Supreme Court, arguing the state court's timing violates federal election law. "Never before in American history has a court overturned a congressional map after a primary and before a general election," Hanaway said, adding that the ruling has "thrust our state into a full-fledged constitutional crisis." Hoskins used similar language, warning of a "constitutional crisis" while saying his office would comply with the order and place the referendum, along with two other pending ballot questions, before voters in November.

"Never before in American history has a court overturned a congressional map after a primary and before a general election."

President Trump, who had publicly pushed Missouri Republicans to redraw the seat, called the ruling "horrible, ridiculous and unconstitutional" and said the state "must be able to use the map that was in effect just a couple of months ago" — referring to the map the court just blocked. House Minority Leader Hakeem Jeffries called the decision a "resounding victory" for Missouri voters and urged the U.S. Supreme Court to apply the same standard it has used in redistricting disputes elsewhere. Cleaver said Republicans had put "political advantage over everything," while People Not Politicians organizers framed the ruling as a vindication of the state's century-old referendum power.

The fight is not over. Hanaway's promised appeal would ask the U.S. Supreme Court to intervene before Missouri's ballots are finalized, a request that legal analysts say faces long odds given that the state court's ruling rests on Missouri's own constitution rather than federal law. Unless the justices in Washington intervene, Missouri voters will decide the underlying question themselves in November, when the referendum asking whether to keep or repeal the Republican-drawn map appears on the same ballot as the House races it would reshape. A separate legal challenge to the map on racial-gerrymandering grounds, filed by a different set of Missouri voters, also remains pending before the same court, meaning Thursday's decision may not be the last word on how Missouri's House seats are drawn even after November's vote.