Last Updated: September 22, 2026 
The legal dispute over Missouri’s congressional boundaries took another turn when a three-judge Eighth Circuit panel ruled that the state should use the districts adopted in 2025.
The appellate court directed the lower federal court to enter a permanent injunction preventing Missouri from conducting the November congressional election under any map other than the 2025 boundaries. However, the panel delayed the effect of its decision until September 28 at 5 p.m. Central Time, providing an opportunity for further Supreme Court proceedings.
Brownstone Law previously reported on the appellate arguments in Eighth Circuit Considers Bid to Restore Missouri Congressional Map After Supreme Court Stay.
Appeals Court Rules in Favor of the 2025 Map
Missouri used the newer congressional boundaries during its August primary. The Eighth Circuit concluded that returning to the 2022 districts for the November general election would violate the U.S. Constitution.
The panel’s decision favored the use of the same congressional map for both stages of the election. It directed the district court to issue permanent relief requiring the state to use the 2025 map.
Despite that ruling, Missouri cannot immediately implement the newer boundaries. The appeals court temporarily paused its own decision because the U.S. Supreme Court had previously stayed the lower court’s order.
Supreme Court Stay Remains in Effect
Earlier in September, a federal district court temporarily required Missouri to use the 2025 map. The U.S. Supreme Court subsequently stayed that order while the Eighth Circuit considered the appeal.
Brownstone Law covered that intervention in Supreme Court Blocks Missouri Republican-Backed Congressional Map for 2026 Midterms.
The Supreme Court’s order did not resolve the underlying constitutional dispute or permanently invalidate the 2025 map. It temporarily prevented the federal district court’s directive from taking effect while the litigation continued.
Because that stay remains operative, further Supreme Court action may be required before the Eighth Circuit’s ruling can affect which map Missouri uses in November.
Referendum Dispute Led to Conflicting Court Decisions
Missouri lawmakers approved the disputed congressional districts in 2025. Opponents subsequently submitted a referendum petition seeking to place the redistricting measure before voters.
On September 3, the Missouri Supreme Court ruled that the referendum petition was valid and that the new map could not take effect before the statewide vote. Under that decision, the congressional districts adopted in 2022 remained controlling.
A federal district court later concluded that using one map for the August primary and another for the November general election raised federal constitutional concerns. It ordered Missouri to use the 2025 boundaries, but the U.S. Supreme Court paused that order before the Eighth Circuit issued its latest decision.
Election Preparations Continue Amid the Litigation
Missouri election officials have been preparing for the November election under the 2022 boundaries while the Supreme Court’s stay remains in effect. Ballot deadlines for military, overseas, and absentee voters have added urgency to the litigation.
Changing the applicable districts at this stage could affect ballot preparation and election administration. The Eighth Circuit acknowledged the limited time available by pausing its ruling for only one week.
What Happens Next?
The Eighth Circuit’s decision supports the 2025 map, but it does not immediately place those districts into effect.
The court delayed implementation of its ruling until September 28 at 5 p.m. Central Time to allow the parties to seek further relief from the U.S. Supreme Court. Unless the Supreme Court changes or lifts its existing stay, Missouri is expected to continue using the 2022 congressional map for the November election.
A further filing could ask the Supreme Court to determine whether the Eighth Circuit’s ruling should take effect before voting proceeds. The latest decision therefore advances the federal litigation without providing a final answer on which boundaries will govern the election.
Disclaimer: This article is for general informational purposes and does not constitute legal advice. It describes court proceedings reported through September 22, 2026. Court orders may be modified through further appellate proceedings.
