Missouri's Supreme Court has handed Democrats a rare procedural win in the redistricting wars, pausing a Republican-drawn congressional map days after President Trump publicly attacked the ruling — a fight that could hand Democrats a House seat before a single vote is cast in November. Meanwhile, fresh polling out of Iowa shows a split verdict, with Democrat Rob Sand leading the governor's race while Republican Ashley Hinson holds an edge in the Senate contest, underscoring that ticket-splitting remains alive in at least one battleground state.

Missouri and Maryland Courts Reshape the Redistricting Map

The Missouri Supreme Court ruled unanimously that a Republican-drawn congressional map used in the state's primary did not legally take effect, sending the matter to a fall referendum and potentially flipping one Missouri U.S. House seat to Democrats if voters reject the map. President Trump called the decision "ridiculous" in public comments. The same day, Maryland's Supreme Court reinstated a Democratic-backed redistricting referendum for the November ballot with revised wording, reversing a lower court that had blocked it — a ruling reported as improving Democrats' House prospects in Maryland this fall. Together the two rulings show congressional maps still in flux in multiple states just two months before the general election, with courts rather than legislatures currently setting the terms.

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Iowa Splits Between Governor and Senate

A new Emerson poll completed September 1 shows Iowa voters diverging by office. In the governor's race, Democrat Rob Sand leads Republican Zach Lahn 49% to 46%. In the Senate race, Republican Ashley Hinson leads Democrat Josh Turek 50% to 45%. PollingSource's own averages currently rate the governor's race Lean D and the Senate race Lean R, consistent with the Emerson numbers, and the divergence suggests Iowa voters are drawing distinctions between the two contests rather than voting a straight party line.

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Alaska Senate: Peltola Leads Sullivan in Early Fall Test

An Alaska Survey Research poll completed August 23 shows Democrat Mary Peltola leading Republican Dan Sullivan 51% to 49% in the Alaska Senate race. The margin sits within typical polling error, and no PollingSource rating was provided for the contest, but the result signals a race close enough to draw continued national attention given Alaska's ranked-choice voting system and history of unpredictable statewide outcomes.

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Massachusetts and California Settle Nomination and Vacancy Questions

Following Tuesday's primary, Ballotpedia reports that Senator Ed Markey's win over Representative Seth Moulton makes him the second-oldest senator to win a contested primary in 2026, trailing only Idaho Republican Jim Risch. Separately, Democrat Aisha Wahab was sworn into the U.S. House on September 2, ending a nearly five-month vacancy in California's 14th Congressional District after winning an August 18 special election to succeed Eric Swalwell, who resigned in April.

What to watch tomorrow: Republican Rep. Keith Self plans to introduce a House resolution condemning Sharia law and is pushing for a floor vote before the midterms — watch whether GOP leadership schedules time for it, and whether it draws Democratic votes in either direction.

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