Why this matters: with the November midterms about five weeks out, the last major court fight over this year's House district lines is over — and voters in nine states will cast ballots under redrawn maps.
September 28, 2026 — The U.S. Supreme Court on Friday rejected a Republican-drawn Missouri congressional map backed by President Donald Trump for the third time this month, ending the country's longest and most tangled redistricting battle. Missouri must run its November midterm election under the same district lines it used in 2022 and 2024.
Image: Original illustration of the U.S. Supreme Court building at dusk behind a congressional district map with a gavel. Credit: Red Eye Eagle News / original AI illustration.
Editor's Highlight: The deciding factor was not ideology but the calendar: ballots were already printed, absentee voting had begun, and the justices refused to redraw the lines in the middle of an election.
Table of Contents
- Key Facts
- The ruling: a third "no" from the justices
- Why the map failed: the referendum trigger
- The target: Cleaver's Kansas City district
- Nine states redrawn: the national scoreboard
- What comes next: the referendum and 2028
- Bottom Line
- FAQ
- Sources
Key Facts
| Detail | Information |
|---|---|
| Ruling date | Friday, September 25, 2026 |
| Issued by | U.S. Supreme Court; unsigned order, no noted dissents |
| Outcome | Missouri votes in November under its 2022/2024 congressional map |
| Times blocked | Third Supreme Court order against the 2025 GOP map this month |
| Court's reasoning | Ballots already printed and mailed; absentee voting begun — a switch would cause "electoral chaos" |
| The map's aim | GOP hoped to go from 6 of 8 Missouri House seats to 7, targeting Rep. Emanuel Cleaver's Kansas City district |
| Referendum | Missouri voters still decide the 2025 map's fate in a November statewide referendum |
| National picture | New House districts in 9 states; AP estimates ~1 in 10 voters are in a different district than in 2024 |
The ruling: a third "no" from the justices
The Supreme Court halted a federal appeals court ruling that would have revived the Republican-friendly map for November's elections, which will determine control of Congress — with no noted dissents.
In an unsigned opinion, the justices wrote: "At this late date, ordering reversion to the 2025 map in the midst of an ongoing election would usher in electoral chaos." The order directs lower courts not to interfere with the 2022 map in Missouri's 2026 congressional elections.
The ruling lands roughly 440 days after Trump spurred the mid-decade redrawing, leaving the districts for this year's midterms settled in all states; Trump took to social media on Sunday to express his displeasure, the Associated Press reported.
Why the map failed: the referendum trigger
Missouri lawmakers, at the urging of Trump and Republican Gov. Mike Kehoe, passed revised districts last September. Opponents gathered citizen signatures to force a statewide referendum on the map — and that petition is what undid it.
The Missouri Supreme Court ruled on September 3 that the referendum meant the 2025 map never went into effect and was never law, even though it was used in the August 4 primaries. The court blamed Republican Secretary of State Denny Hoskins for running the primaries under the new map without voter approval; Hoskins had waited until the August 4 deadline to reject the petition, arguing referendums don't apply to congressional redistricting.
The case then ricocheted between courts. On September 8, the Supreme Court let the state ruling stand — but minutes later, U.S. District Judge Stephen Clark issued a conflicting order favoring the new map. The Court blocked Clark's order on September 10, and on September 21 an 8th Circuit panel ruled that switching maps between a primary and a general election would violate the Constitution, setting up the final appeal.
Friday's ruling ended it: with absentee voting already underway, the Supreme Court concluded the voters' calendar settled the question before the legal theory could.
The target: Cleaver's Kansas City district
Republicans currently hold six of Missouri's eight House seats. The revised map added Republican voters to the Kansas City-based 5th Congressional District of longtime Democratic Rep. Emanuel Cleaver, shedding parts of Kansas City to neighboring districts with Republican incumbents and stretching the remainder eastward into rural Republican areas. About 59% of the district's potential voters were new under the plan, per an AP estimate.
"I think my reelection prospects shot up significantly," Cleaver said. His opponent, Republican state Sen. Rick Brattin, who won a six-way primary under the revised districts, denounced the decision as "a travesty."
The legal wrangling confused more than a million Missouri voters — nearly 1 in 4 statewide — who were shifted between districts, while absentee voting began Tuesday under the 2022 lines. Kansas City election director Shawn Kieffer called the final decision "a big sigh of relief."
Nine states redrawn: the national scoreboard
Missouri's was the most complex case, but roughly a dozen states sought to change House districts this year after Trump urged Republicans to redraw maps in July 2025 — Texas first, then California with offsetting districts, then more Republican-led states, and several Southern states after an April Supreme Court ruling weakened Voting Rights Act protections for majority-minority districts.
New congressional districts are in use this year in Alabama, California, Florida, Louisiana, North Carolina, Ohio, Tennessee, Texas and Utah. All tilt Republican except California and Utah, where the lines could help Democrats.
| State | Tilt | Note |
|---|---|---|
| Texas, Florida, Tennessee, others | Republican | Trump-urged mid-decade redraws |
| California | Democratic | Offset to Texas' map |
| Utah | Democratic | State court decision; 69% of voters in new districts |
If the maps play out as designed, Republicans could net up to nine additional seats — though a strong Democratic year could shrink that. The reshuffling is vast: AP estimates about one in ten potential voters nationwide are in different districts than in 2024, including more than 6.9 million in Texas, over 6.3 million in California and more than 4.5 million in Florida.
In Tennessee, Republicans targeted the Democratic-held 9th District in Memphis, but the ripple effects were so large that seven of the state's nine House districts ended up with new boundaries. Practical Takeaway: Check your own district before Election Day — redrawn lines may mean different candidates than you expect.
What comes next: the referendum and 2028
The 2025 map is shelved, not dead. The group People Not Politicians Missouri is campaigning to persuade voters to permanently reject it in the November referendum. "People, not politicians will be the final deciders on this DC power grab," said executive director Richard von Glahn.
The battles aren't over nationally either. November ballot issues in Maryland and Missouri could pave the way for new districts ahead of the next presidential election, the AP reported, while states that failed this year — Georgia, Indiana, South Carolina, Virginia — could try again, and November's state elections could open possibilities in Minnesota, Pennsylvania and Wisconsin.
Analysis Note: In the same week, CBS News reported the Court separately allowed the Trump administration to use an expanded database to check voter citizenship — a distinct election-rules decision beyond Missouri's district lines.
Bottom Line
The Supreme Court's third "no" ends the messiest map fight of the 2026 cycle: Missouri votes in November under its old lines because the new ones ran into a citizen referendum and a calendar that left no room for a mid-election switch.
What to watch: the November referendum on Missouri's 2025 map, how the nine redrawn states perform on Election Day, and which states start the 2028 map process the morning after.
FAQ
What exactly did the Supreme Court decide?
In an unsigned September 25 order, the justices halted an appeals court ruling that would have revived Missouri's 2025 Republican-drawn map. Missouri must use the same districts it used in 2022 and 2024 for the November 2026 midterms.
Why couldn't Missouri just switch to the new map?
The state court ruled the 2025 map never took effect because the referendum suspended it, and the Supreme Court said changing lines after ballots were printed and voting began would cause "electoral chaos."
Which map will Missouri use in November?
The 2022 map — the same lines as 2022 and 2024 — even though August's primaries ran under the 2025 map. Some voters will see different candidates on their November ballots than in August.
How many states have new House districts this year?
Nine: Alabama, California, Florida, Louisiana, North Carolina, Ohio, Tennessee, Texas and Utah. All tilt Republican except California and Utah.
Sources
- Associated Press (David A. Lieb), "9 states have new US House districts for the midterm elections after Trump urged changes," September 28, 2026 — national wrap-up: nine-state tally, settled districts, voter-impact estimates, 2028 outlook: https://990theanswer.com/news/national/9-states-have-new-us-house-districts-for-the-midterm-elections-after-trump-urged/c26a343527d6d3da51abffec2da94088
- Associated Press (David A. Lieb), "Supreme Court rejects a Trump-backed Missouri congressional map for the third time," September 25, 2026 — Friday ruling details, "electoral chaos" order, Cleaver/Brattin/Hoskins reactions, 8th Circuit timeline, 16 lawsuits: https://theanswerorlando.com/news/national/supreme-court-rejects-a-trump-backed-missouri-congressional-map-for-the-third-ti/3f43ba5f47681ea759115fbc250712d4
- NPR Illinois / St. Louis Public Radio (Jason Rosenbaum), "Supreme Court blocks Trump-backed Missouri congressional map," September 25, 2026 — referendum mechanics, Missouri Supreme Court vs. federal court clash, Hoskins' role: https://www.nprillinois.org/illinois/2026-09-25/supreme-court-blocks-trump-backed-missouri-congressional-map
- CBS News, "Supreme Court again blocks Missouri map favoring Republicans after paving way for voter database" (YouTube) — video report embedded above, verified September 28, 2026: https://www.youtube.com/watch?v=YNRric2a26g
- Red Eye Eagle News, original AI illustration — hero image for this article.
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