The Supreme Court on Friday again blocked Missouri Republicans from using their preferred 7-1 congressional map for the 2026 midterms, warning that a late switch would create electoral chaos.
In an unsigned opinion with no noted dissents, the justices held that Missouri must run the November general election under the older 2022 lines, not the newer map GOP lawmakers passed last year. The order marks the third time in as many weeks the fight over the Show Me State’s House districts has landed at the high court, and the third loss for Republicans seeking the change.
The Hill reported the court made plain that state law now controls the outcome for 2026.
The justices wrote:
"In short, as a matter of state law, the 2022 map, not the 2025 map, must be used in the 2026 congressional election,"
They added that earlier rulings should have settled the point.
"Given this Court’s two prior orders in this litigation, our conclusion that this was error should come as no surprise,"
And they refused to force a midstream map change after voting had already begun.
"At this late date, ordering reversion to the 2025 map in the midst of an ongoing election would usher in electoral chaos,"
Republicans passed the 7-1 congressional lines last year and used that design in the August primaries. Primary winners were chosen under the new boundaries. The goal was straightforward: add one GOP pickup opportunity and reshape a Kansas City-based seat long held by Rep. Emanuel Cleaver (D-Mo.).
The map took shape amid pressure from President Trump and national Republicans to improve House prospects. Cleaver now looks positioned to win reelection under the older 6-2 lines the state must restore.
Election officials had already started mailing military and overseas ballots on Saturday under the 6-2 map. That practical fact weighed heavily. A last-minute flip would have forced ballot recalls, voter confusion, and district lines that no longer matched the races already underway.
Earlier this month, Missouri’s top court ruled that a referendum on the new congressional lines must go before voters. Until voters approve it, the 7-1 map does not take effect. That decision sent the state back toward the 2022 districts for the fall midterms.
GOP congressional candidates had urged a federal judge to treat a late reversion as unconstitutional. The Supreme Court previously lifted that judge’s order. Then on Monday, the 8th U.S. Circuit Court of Appeals issued a new ruling that effectively reinstated the 7-1 map and set it to take effect the following week.
A referendum organizer brought that 8th Circuit action straight back to the justices on an emergency basis, stressing that ballots were already in the mail. The Supreme Court agreed the lower-court path was error and shut it down.
Reuters reported the same dispute had already reached the high court on September 8 and September 10, with the justices blocking the new map both times and no public dissents noted. Missouri’s Supreme Court had ruled unanimously the map could not be used until the referendum. A Trump-appointed district judge and an 8th Circuit panel that included Trump appointees had pushed to put the 2025 lines back in force for November. Challengers returned yet again after the St. Louis-based federal court ordered reinstatement despite the prior Supreme Court stays.
Before the latest high-court order, Missouri Attorney General Catherine Hanaway filed her own emergency appeal seeking to reinstate the Trump-backed map. The state court had blocked it after opponents gathered more than 300,000 referendum signatures and ordered the prior districts used unless voters approve the new lines.
Just the News reported Hanaway’s sharp warning about the sequence, primaries under one map, then a court-ordered switch before the general election.
Hanaway said:
"Never before in American history has a court overturned a congressional map after a primary and before a general election. This unprecedented decision clearly violates federal law and has thrust our state into a full-fledged constitutional crisis."
The Supreme Court’s Friday order did not adopt that framing. It rested on state law and the risk of chaos once ballots were moving. Still, the whiplash Hanaway described is exactly what election administrators were racing to avoid.
Nationally, the fight was always about one sought Republican pickup. That is not a redistricting wave. Locally, it is a mess for candidates and voters who must now relearn district lines after primaries already ran under the newer map.
The New York Post reported the justices halted the 8th Circuit’s attempt to revive the GOP map, leaving the Missouri Supreme Court’s referendum ruling in place. The state will use the 2022/2024 congressional districts for the 2026 elections. Candidates such as Cleaver remain on the ballot even as boundaries revert. Referendum backers cast the outcome as a win for voters over politicians.
Richard von Glahn said:
"We have said from the beginning, people, not politicians will be the final deciders on this DC power grab,"
Republicans passed a map through the legislature, ran primaries on it, and watched courts and a signature drive yank the lines back at the doorstep of the general election. Election officials can now proceed without reprinting ballots. Voters still face a district map that does not match the one used in August.
The court chose stability over a late correction. That protects orderly elections. It also leaves a duly enacted Republican map on ice until voters speak, after months of litigation that bounced from Jefferson City to federal court to the Supreme Court three times in three weeks.
When maps change after primaries and ballots are already in the mail, the people who pay the price are the voters and the workers running the election, not the lawyers who kept the fight alive.
