NBC News
· collected 2026-09-09 · by Jane C. Timm
A federal judge in Missouri has ruled that the state's new congressional map, which was redrawn to potentially eliminate one Democratic-held seat, must be used in November's midterm elections to avoid federal constitutional violations. In contrast, a decision by the U.S. Supreme Court left intact a Missouri Supreme Court ruling that prevents the use of the new map until after voters have weighed in on a ballot initiative to reject it. The state's deadline for finalizing ballots is September 19, with the first ballots set to go out on that date. Two Republican candidates and two voters have filed a lawsuit arguing that the new map should be used, citing concerns about federal constitutional violations.
Written by the local model on 2026-09-09,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
The Missouri Supreme Court has blocked a new congressional district map backed by President Donald Trump from being used in the November election, dealing a blow to Republicans. The court ruled that a referendum on whether the state can use the new map must be included on the November ballot, meaning Missouri's fall elections will take place under its previous district lines. The decision comes after more than 300,000 signatures were gathered by advocacy group People Not Politicians Missouri to force a veto referendum on the Republican-redrawn districts. Republicans had hoped the new map would help them win an additional seat and hold onto their slim House majority in the midterms.
The court's ruling effectively puts the previous district lines back into effect for the November election, but allows voters to decide whether to adopt the new map at a later date. Missouri Attorney General Catherine Hanaway has already vowed to appeal the decision to the U.S. Supreme Court. In response to the court's ruling, Trump called it "horrible, ridiculous, and unconstitutional."
Written for “Missouri Congressional Redistricting …” on 2026-09-09,
grounded in this article and the 5 other(s) covering the same event.
A fast-moving fight over whether Missouri Republicans can use a redrawn congressional map for this fall’s midterm elections was cast into chaos on Tuesday with two different courts issuing conflicting rulings.
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courts → move → rulings
In one, the U.S. Supreme Court, in an order issued by Justice Brett Kavanaugh, left in place a Missouri Supreme Court ruling from last week that said the map could not be used while a ballot initiative that could lead to voters rejecting the newly drawn district lines moves forward.
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voters → issue → lines
Kavanaugh handles emergency requests that arise from Missouri.
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that → handle → Missouri
But soon after, a federal judge in Missouri ruled in favor of two GOP congressional candidates who argue that the new map, which was in place for the August primaries, must be used in November in order to avoid federal constitutional violations.
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which → rule → violations
That case could also quickly face U.S. Supreme Court scrutiny with time running out for the map to be finalized.
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map → face → scrutiny
The state’s deadline to finalize ballots was 5 p.m local time, and first ballots are set to go out Sept. 19.
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ballots → finalize → ballots
Missouri Gov. Mike Kehoe and Attorney General Catherine Hanaway, both Republicans, said on X Tuesday evening that the redrawn map would be used for the November election.
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map → say → election
The two cases raise different legal issues, with the Missouri Supreme Court focused only on state law while the federal case raises questions under the U.S. Constitution.
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case → raise → Constitution
The 2025 Republican redistricting plan, part of a wave prompted by President Donald Trump, was designed to eliminate one of the state’s two Democratic-held seats, currently held by Rep. Emanuel Cleaver.
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plan → prompt → Cleaver
If the Missouri Supreme Court ruling remains in effect, a map drawn in 2022, with six Republican-held seats and two Democratic-held seats, would be in place for the general election.
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map → remain → election
The new lawsuit was filed by Rick Brattin, the Republican nominee in the district currently held by Cleaver, as well as Rep. Bob Onder, R-Mo. and two voters.
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lawsuit → file → Cleaver
The legal clash erupted after the 2025 redistricting plan was enacted.
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plan → erupt → ?
A group called People Not Politicians Missouri, led by Richard von Glahn, gathered signatures in support of a state referendum that would veto the Legislature’s map and put it on hold for the 2026 election.
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that → call → election
But Missouri Secretary of State Denny Hoskins, a Republican, refused to put the measure on the ballot, arguing that redistricting plans are not subject to being overturned by voters.
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plans → refuse → voters
The Missouri Supreme Court found that Hoskins should not have rejected the plan, unanimously concluding there is nothing in state law that says redistricting plans are exempt from the referendum process.
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plans → find → process
The referendum petition was “legal, sufficient and timely,” the court found.
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court → find → ?
Under state law, whenever a proposed ballot initiative that overrides the Legislature is deemed valid, the law is automatically put on hold until after the people vote on it.
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people → propose → it
The court also said any confusion caused by its ruling was a result of Hoskins’ delay in deciding whether the referendum could move forward.
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referendum → say → delay
Hoskins waited until the last minute to reject the proposal ahead of an Aug. 4 deadline and broke with the state’s typical process of putting a law facing a veto referendum on hold when enough signatures are submitted.
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signatures → wait → hold
In the separate federal case, U.S. District Judge Stephen Clark, ruled that the state must use the map that people voted in during the primary.
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people → rule → primary
Using the old map would violate the rights of candidates under the 14th Amendment’s equal protection clause and the provision of the Constitution that outlines how members of the House are elected, he found.
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he → use → House
Hoskins argued at the Supreme Court that the state court ruling violated the U.S. Constitution’s elections clause, which he said delegates significant powers to state legislatures in overseeing elections.
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he → argue → elections
The Supreme Court rejected a similar argument in a redistricting case from North Carolina in 2023.
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Court → reject → 2023
Hoskins’ lawyers told the justices that the state court ruling had created chaos because the new map was used in this year’s primary election.
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map → tell → election
If the state has to revert to the old map, “hundreds of thousands of Missourians will see their votes in the primary election rendered pointless,” they wrote.
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they → have → election
Lawyers for the referendum supporters said in court filings that Hoskins was seeking at the Supreme Court a “political victory to which he was never entitled under the Missouri Constitution.”
In May, the Supreme Court rejected a similar attempt by Democrats in Virginia who sought to revive their own congressional map that had been approved by voters.
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that → say → voters
The Virginia Supreme Court had found legal flaws in the process that led to the referendum.
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that → find → referendum
