Election 2026 Redistricting Missouri

People opposed to new the U.S. House districts passed by the Missouri General Assembly demonstrate outside the state Capitol, in Jefferson City, Mo., Tuesday, March 10, 2026.

JEFFERSON CITY, Mo. (AP) — The Missouri Supreme Court on Tuesday upheld a mid-decade redistricting plan that gives Republicans an improved chance at winning an additional U.S. House seat in this year’s midterm elections.

The decision marks a legal victory for President Donald Trump in a nationwide redistricting battle. But it may not be the final word. Opponents have submitted more than 300,000 petition signatures in an attempt to put the new map to a statewide vote.

Missouri’s Republican-led Legislature approved new U.S. House districts in September at the urging of Trump, shortly after Texas Republicans also redrew their congressional districts. Trump is hoping the new districts could help the GOP hold on to its narrow majority in the House, where Democrats need to gain only a few sets in November to win control and impede Trump’s agenda.

Opponents had argued that Missouri’s constitution allows redistricting only immediately after a census — not in the middle of a decade. But the state’s high court rejected that argument in a 4-3 decision, concluding there was no explicit prohibition against the Legislature doing redistricting more often.

Missouri currently is represented in the U.S. House by six Republicans and two Democrats under a map passed in 2022 after the most recent census. The new map is intended to help Republicans win a Kansas City-area seat currently held by Democratic U.S. Rep. Emanuel Cleaver by reassigning portions to two neighboring districts and stretching the remainder into Republican-heavy rural areas.

A trial court rejected a separate legal challenge last week contending that the new districts violate state requirements to be compact. That decision also is being appealed to the Missouri Supreme Court.

After Texas and Missouri adopted new congressional districts, Republican-led North Carolina and Ohio also revised their districts in a way that could help Republicans gain seats. But voters in California countered in November by approving new districts that could help Democrats win more seats.

In November, a Utah judge adopted a redistricting plan that could help Democrats win one of the state’s four U.S. House seats, after ruling that the Republican-led Legislature had circumvented anti-gerrymandering standards passed by voters. Democratic lawmakers in Virginia also have taken a step toward mid-decade redistricting by referring a measure authorizing it to the April 21 ballot. The Virginia Supreme Court is considering a legal challenge seeking to invalidate the measure.