Here’s what happened.
President Donald Trump and Republicans have suffered a significant setback in Missouri after the U.S. Supreme Court intervened in a closely watched congressional redistricting battle ahead of the 2026 midterm elections.
The Supreme Court on Thursday blocked Missouri from using a Republican-backed congressional map for the November election, leaving the state on track to use its older 2022 congressional districts.
The decision matters far beyond a fight over lines on a map.
Republicans currently hold six of Missouri’s eight U.S. House seats. The disputed map could have created a better opportunity for the GOP to compete for a seventh seat — something that could prove important with control of the House closely contested.
The ruling does not determine which party will win the House in November. But it removes one potential advantage Republicans had hoped to carry into the midterms.
Supreme Court Steps Into Missouri Redistricting Fight
The Supreme Court granted an emergency request involving the Missouri congressional map Thursday.
“The application for stay presented to Justice [Brett] Kavanaugh and by him referred to the Court is granted,” the order stated.
The order was unsigned and did not include an explanation of the justices’ reasoning, a common practice when the Supreme Court handles emergency applications.
No justice publicly noted a dissent.
The decision adds another chapter to an unusually complicated legal fight involving state courts, a federal judge, Missouri election officials and competing congressional maps.
Making matters even more complicated, Missouri already conducted its August primary election using the newer districts.
Republicans Blast Last-Minute Map Change
Republican officials sharply criticized the decision because voters have already participated in primary elections under the newer congressional boundaries.
RNC Election Integrity Communications Director Ally Triolo said the ruling effectively changes the landscape after primary ballots have already been cast.
“Changing the rules mid-election is reckless and wrong,” Triolo said in a statement.
Republican state officials have similarly argued that changing congressional districts between the primary and general elections could interfere with voters’ federal rights.
Supporters of returning to the older map, meanwhile, argue that Missouri’s new congressional districts never legally took effect in the first place.
That disagreement sits at the heart of the case.
Missouri Supreme Court Said Old Map Must Remain
The Missouri Supreme Court previously ruled unanimously that the newer congressional districts had not legally taken effect.
Under that ruling, Missouri’s 2022 congressional map must continue to be used unless voters approve the newer map.
The situation became considerably more complicated when U.S. District Judge Stephen Clark subsequently ordered Missouri to use the newer districts.
That created conflicting state and federal court decisions over which congressional map should govern the November election.
The U.S. Supreme Court has now intervened.
Following the stay, Missouri Secretary of State Denny Hoskins announced that his office would instruct local election authorities to return to the 2022 congressional boundaries.
“Following the United States Supreme Court’s stay, the only governing court order in effect is from the Missouri Supreme Court,” Hoskins said.
His office is therefore directing local officials to prepare for the November election using the older districts.
Missouri Secretary of State Faced Contempt Hearing
The dispute had already produced another extraordinary development involving Hoskins.
The Missouri Supreme Court directed the GOP secretary of state to attend a contempt hearing after he told local election authorities to move forward with the newly drawn congressional districts.
A federal judge declined to stop that hearing before the U.S. Supreme Court issued its latest order.
The dispute illustrates the unusual legal situation Missouri election officials have faced as courts reached different conclusions over which congressional boundaries should apply.
For voters, the practical result is particularly striking.
Missouri residents participated in congressional primaries under one set of districts but are now expected to vote in the November general election under another.
Why Missouri’s Congressional Map Matters
The political stakes surrounding the redistricting battle are substantial.
Missouri Republicans approved the disputed map in 2025.
One of its biggest changes targeted the boundaries of the Kansas City-based 5th Congressional District, represented by Democratic Rep. Emanuel Cleaver.
The new map shifted portions of the district into neighboring seats while extending the remaining district into areas that generally favor Republican candidates.
Under Missouri’s existing congressional map, Republicans hold six House seats while Democrats hold two.
The redesigned districts could have improved Republicans’ ability to compete for seven of Missouri’s eight seats.
That potential pickup attracted national attention because of the narrow balance of power in the U.S. House.
One House Seat Could Carry Added Importance
Midterm elections frequently become referendums on the party occupying the White House, but congressional control ultimately comes down to individual races across the country.
That makes redistricting battles particularly important when House margins are narrow.
For Republicans, Missouri represented an opportunity to potentially improve their position by making the 5th Congressional District more competitive.
For Democrats, blocking the new map preserves congressional boundaries that have previously allowed the party to win two of Missouri’s eight seats.
The Supreme Court’s decision does not guarantee either party a victory in any congressional race.
Candidates still have to compete for votes, and Missouri voters will ultimately decide who represents them in Washington.
But Republicans will now have to fight those races without the newer congressional map they had hoped to use.
Missouri Voters Get the Final Say on New Map
The controversy is not necessarily over.
Critics of the GOP-supported map, including People Not Politicians, gathered hundreds of thousands of signatures in an effort to let Missouri voters decide the fate of the redistricting proposal.
The Missouri Supreme Court ruled that the referendum should appear on the November ballot.
That means Missouri voters themselves will have an opportunity to decide whether the newer congressional map should eventually take effect.
Until then, the 2022 congressional districts remain the operative map for the upcoming general election.
A Midterm Setback for Trump’s GOP
The Missouri fight is part of the larger national battle over congressional control.
Republicans had hoped the new boundaries would improve their opportunity to capture an additional Missouri House seat. Instead, the Supreme Court’s intervention means the party enters the November election using the older map.
Calling the ruling something that “ruins” Trump’s midterm chances goes beyond what the court decision itself establishes. One Missouri congressional district cannot determine the national result on its own.
What can be said is that the decision removes a potentially valuable opportunity for Republicans in an election where individual House seats could matter.
And there is another unusual element voters will have to consider.
Missouri held its congressional primaries using the newer districts. The general election is now expected to take place using the older boundaries.
Meanwhile, voters will simultaneously decide whether they want the newer congressional map to take effect in the future.
That combination of court battles, redistricting, congressional control and a statewide referendum ensures Missouri will remain one of the closely watched states in the fight over the House.
For Trump and congressional Republicans, the immediate consequence is clear: a map they hoped would improve their position in Missouri will not be available to them for the November election.
