Supreme Court Blocks Missouri’s New Congressional Map Ahead of Midterm Election
The U.S. Supreme Court has blocked Missouri from using a newly drawn congressional map for the November 2026 midterm elections, ending—at least for the November election—a remarkable legal battle over which boundaries Missouri voters will use to elect members of Congress.
In a brief order issued Thursday, September 10, the justices granted an emergency request from opponents of the 2025 map and suspended a federal judge’s order that had required Missouri to use the newer boundaries.
The Supreme Court gave no explanation for its decision and recorded no public dissents.
The ruling clears the way for Missouri to conduct the November election using its 2022 congressional map, which was the map the Missouri Supreme Court had previously ordered officials to use.
Missouri Will Return to the 2022 Map
The immediate consequence is that Missouri’s congressional districts for the November 3 general election will be based on the map adopted after the 2020 census rather than the Republican-backed map enacted in 2025.
Missouri Secretary of State Denny Hoskins subsequently directed local election officials to proceed with the older boundaries following the Supreme Court’s ruling.
The change is significant because Missouri conducted its August primary using the 2025 map.
That means candidates and voters are now facing a general election under different congressional boundaries from those used during the primary.
The unusual situation developed because competing state and federal court orders produced conflicting instructions about which map should govern the November election.
Why the 2025 Map Was Contested
Missouri Republicans approved a new congressional map in 2025 that substantially changed several districts, including the Kansas City-based 5th Congressional District represented by Democratic Rep. Emanuel Cleaver.
The redistricting plan was designed to make changes to the state’s congressional boundaries and was expected to improve Republican prospects in several districts.
The dispute intensified after opponents gathered more than 300,000 signatures seeking a referendum on the new map.
The Missouri Supreme Court ruled on September 3 that the referendum petition was legally sufficient and that the 2025 map could not take effect unless voters approved it.
The court concluded that the 2022 congressional map remained in force for the November election.
A Federal Judge Later Ordered the New Map Used
The legal situation became more complicated when Republican congressional candidates and voters challenged the use of the older map in federal court.
U.S. District Judge Stephen Clark subsequently ordered Missouri election officials to use the 2025 map for the November election.
Clark’s order created a direct conflict with the Missouri Supreme Court’s decision.
Missouri election officials then faced competing instructions from state and federal courts, with election deadlines approaching rapidly.
The challengers to the 2025 map appealed to the U.S. Supreme Court, asking the justices to intervene.
On September 10, the Supreme Court granted that request and suspended Clark’s order.
The Supreme Court Had Already Been Asked to Intervene
Thursday’s ruling was not the first time the Missouri dispute reached the nation’s highest court in September.
Earlier in the week, Justice Brett Kavanaugh rejected a separate emergency request seeking to block the Missouri Supreme Court’s ruling.
That left the state Supreme Court’s decision intact.
The subsequent federal court order permitting the new map created another emergency appeal, sending the dispute back to the Supreme Court only days later.
Thursday’s action effectively resolves which map will be used for the November general election unless another court order changes the situation.
What About the Referendum?
The 2025 map has not necessarily disappeared permanently.
The Missouri Supreme Court ordered the referendum concerning the redistricting law to appear on the November ballot.
Under the state Supreme Court’s September 3 ruling, the 2025 redistricting legislation does not take effect unless voters approve it.
The court specifically stated that the 2022 congressional districts remain in force for the November 2026 general election.
Consequently, Missouri voters could face a referendum on the future of the newer congressional boundaries while simultaneously voting for congressional candidates under the older map.
The Election Calendar Made the Dispute More Urgent
Timing has been a major factor in the legal battle.
Missouri’s August primary was conducted using the 2025 map, while the general election is scheduled for November 3.
Mail ballots are also scheduled to begin going out in September.
The competing court decisions therefore created practical questions for election officials, candidates and voters, including which districts candidates should campaign in and which congressional races should appear on ballots.
The Supreme Court’s latest order provides a clear directive for the November election: Missouri is to proceed under the older congressional boundaries.
What Happens to Emanuel Cleaver’s District?
The dispute has focused particular attention on the 5th Congressional District in the Kansas City area.
The 2025 map substantially altered the district and would have changed the political composition of the area represented by Cleaver.
Under the Supreme Court’s latest action, however, the 2022 boundaries will govern the November election.
That means the district boundaries used for the general election will differ from those used during the August primary.
A Broader Redistricting Battle
Missouri’s dispute is part of a larger national debate over mid-decade congressional redistricting.
The 2025 Missouri map was adopted after President Donald Trump encouraged Republican-controlled states to reconsider congressional boundaries before the 2026 elections.
Other states have also faced battles over congressional maps and the timing of redistricting.
But the Missouri case is unusual because it involves a conflict between state constitutional procedures, state-court rulings and federal litigation occurring only weeks before a general election.
What the Supreme Court Ruling Means
For the November 2026 election, the immediate picture is now clearer.
Missouri will use the 2022 congressional map rather than the 2025 map.
The Supreme Court’s order prevents the federal district court’s directive requiring use of the newer map from taking effect.
The Missouri Supreme Court’s referendum decision also remains significant because the newer map could still be considered by voters.
The precise long-term status of the 2025 boundaries therefore remains tied to the ongoing litigation and the November referendum.
For voters, the most immediate consequence is straightforward: the congressional districts used for Missouri’s November general election will be the 2022 boundaries, even though the August primary was conducted under the newer map.
Benjamin Harris is a RapidReports front page contributor and editor,proud father of four.
