On Friday afternoon the Supreme Court issued an unsigned order, with no noted dissents, that set aside Monday’s ruling from the 8th Circuit. Missouri will hold its November House elections on the map first enacted in 2022, the same map its county clerks have already used to print and mail ballots. The justices also told the district court and the appeals court not to order the 2025 map again for this election.

People Not Politicians, the campaign behind the referendum on the 2025 map, filed its emergency application on Tuesday night. It argued that the appeals court had effectively ignored the Supreme Court’s earlier orders in the same case. By Friday the justices had agreed.

It was the Court’s third action in the dispute this month. Each time, it sided with keeping the 2022 lines in place for November.

The order was short and pointed. It found that Missouri wasn’t clearly required to use the 2025 map, and that the election had already begun. Ordering the state back to the 2025 lines at this stage, the justices wrote, would usher in electoral chaos.

They also made plain that the lower courts should have seen this coming. Justice Brett Kavanaugh had refused to disturb the Missouri Supreme Court’s ruling on 8 September, and the full Court paused the district judge’s order two days later. Friday’s order said that given those two earlier actions, its conclusion should not surprise anyone.

According to St. Louis Public Radio, the justices also relied on a brief from Missouri’s county clerks and election authorities. The clerks told the justices the election had already started, with ballots on the 2022 map printed and in the mail.

The state had asked for the 2025 map, while also conceding in its filing that Missouri couldn’t run an orderly election under either set of lines. Using the 2025 map would have meant missing a federal deadline for mail ballots. Using the 2022 map, the state warned, would invite challenges to the eligibility of candidates nominated in August.

The fight began with a referendum. After Republicans passed the 2025 map at the president’s urging, People Not Politicians gathered enough signatures to force a statewide vote on it. The August primaries were held under the new lines anyway, because the petition was still being litigated.

Then the orders started to collide. On 3 September the Missouri Supreme Court ruled that the pending referendum suspended the 2025 map, and it ordered November’s election onto the 2022 lines. Days later, a federal judge in St. Louis ordered the opposite, in a lawsuit brought by Representative Bob Onder, state Senator Rick Brattin and two voters. Secretary of State Denny Hoskins, the defendant, agreed with the plaintiffs, so People Not Politicians stepped in to defend the 2022 map itself. The Supreme Court paused that order on 10 September.

On 21 September the 8th Circuit sided with Onder. It held that voters must stay in the same district from the primary through the general election, and it ordered a permanent injunction requiring the 2025 map. But it also paused its own order until 28 September, to give the other side time to appeal. Friday’s order came three days before that deadline.

By then the governing map had changed three times since 3 September, with a fourth change pending. Overseas ballots went out on 18 September and absentee voting opened on 22 September, both on the 2022 lines.

Wellman spent 22 years in the Army and is running against Representative Ann Wagner in the St. Louis suburbs. The 2022 lines are the better version of the district for him. They leave out the rural territory the 2025 map had attached to the seat, including the Jefferson County precincts where his primary rival beat him outright in August.

Cook Political Report moved the race from Solid to Likely Republican on 11 September, when the 2022 map first looked likely to hold. That rating now rests on settled lines. Wagner is still favored, because she won this version of the district by 12 points in 2024, but the race has become a campaign rather than a court case.

For most of September, voters in the district could reasonably wonder which race they were in, and campaigns couldn’t be sure which precincts to target. Wellman now has five and a half weeks, and a single set of voters, to introduce himself to.

The biggest winner on Friday wasn’t in Wellman’s district. The 2025 map was drawn chiefly to unseat Representative Emanuel Cleaver, who has held his Kansas City seat since 2005. According to calculations by Inside Elections, it would have turned his district from one Harris carried by 23 points into one Trump would have won by 18, a swing of 41 points.

Under the 2022 lines, Cleaver is favored again, and Cook moved his seat back to Solid Democratic earlier this month. Statewide, the old map is expected to produce a delegation of six Republicans and two Democrats. The new one could have made it seven to one.

The Court didn’t rule on whether the 2025 map is lawful in general, and it didn’t touch the referendum. It held only that this election, already under way, runs on the lines the clerks had printed. So the referendum on the 2025 map is still on the 3 November ballot, and Missourians will vote on whether to keep that map for future elections on the same day they choose a delegation under the old one.

That leaves room for the fight over the map itself to return for 2028, depending on how the referendum goes. It also leaves room for a fight over results. The referendum campaign warned the justices of chaos on both sides of Election Day, and the state raised the prospect of challenges to candidates’ eligibility under the 2022 lines. Friday’s order settles which map governs the vote. It doesn’t rule out litigation after the count.

This site argues that military service helps Democrats in general elections. A map fight is the clearest case this cycle of a force that swamps anything a candidate brings, whether it’s a service record or a war chest. Wellman’s biography didn’t change this month. His district did, and then changed back.

Now that the lines are fixed, the narrower question is whether a veteran challenger runs ahead of what the district alone would predict. Wagner won these lines by 12 points in 2024. If Wellman cuts deeply into that margin, some of the credit may belong to the candidate. If he lands close to it, the incumbent and the lines did most of the work, and the result will say little about service either way.