With the 2026 midterm elections less than a month and a half away, a chaotic redistricting battle continues to roil deep-red Missouri, where Republicans are pressing ahead with a fight against a U.S. Supreme Court ruling on the state's congressional map. At stake is which set of district lines will actually govern voting in November — and, with them, the shape of a House delegation Republicans currently hold 7-2.

Politico's Josh Gerstein reported on X early Wednesday morning: "BREAKING: Missouri redistricting fight hits [Supreme Court] for 3rd time. Opponents of plan likely to shift 1 House seat to GOP say appeals court basically defied earlier SCOTUS ruling. Kavanaugh sets short fuse, orders response by 2PM Wednesday."

CNN's Aaron Blake responded on X: "There are less than six weeks until the election, and we still don't know which districts Missouri is using." The remark captures the practical stakes of the compressed calendar: candidates, election officials, and voters are preparing for an election whose boundaries remain unsettled.

Writing for Politico, Gerstein explains that opponents of the GOP-friendly gerrymander are once again asking the Supreme Court to settle the matter with a definitive ruling. It is the third time in recent weeks the dispute has reached the High Court. Both prior rounds ended in rulings against the state's new Republican-leaning House map, but a federal appeals court panel reignited the fight on Monday when it ordered the state to use the new map in November.

The fresh emergency application asks Justice Brett Kavanaugh to block this week's unusual decision by the 8th Circuit Court of Appeals, which came despite a unanimous ruling from Missouri's highest court that the election should proceed under the existing map — one that gives Republicans a 7-2 advantage over Democrats in the state's House delegation. Emergency applications of this kind are typically screened first by a single justice, who can act alone or refer the question to the full court. Kavanaugh put the request on a short fuse, ordering state officials and Republican candidates seeking to keep the new map to respond by 2 p.m. Wednesday.

Although the new pro-GOP map was used for August's primary elections, the Missouri Supreme Court ruled that those lines never took effect, because a successful petition drive meant the redrawn map required approval from the state's voters in a referendum before it could be adopted.

According to Gerstein, the Supreme Court's first rebuff of the Republican-led effort came on September 8, when Kavanaugh declined an emergency appeal from state officials seeking to overturn the Missouri Supreme Court's decision. Within minutes of that order, however, U.S. District Judge Stephen Clark, a Trump appointee, granted a restraining order two GOP candidates had sought against using the older lines in the general election. A challenge to Clark's order eventually reached the full Supreme Court, which put it on hold two days later.

While no justice noted any dissent from that ruling, the justices offered no explanation for it — an omission that, per Gerstein, the 8th Circuit appears to have interpreted as leaving it free rein on the issue. The next signal is likely to come quickly, with the 2 p.m. Wednesday response deadline now the nearest marker in a fight that has already reached the justices three times before Election Day.