The 2026 midterm elections will see only 16 competitive House districts classified as "Toss Up," down from 22 in 2024 and 36 in 2022, according to the Cook Political Report [1]. This sharp decline follows the Supreme Court’s April 29 ruling that partisan gerrymandering is legal even when it limits minority representation [1].
Justice Samuel Alito, in the majority opinion, wrote that "The Voting Rights Act does not intrude on States' prerogative to draw districts based on nonracial factors, including to achieve partisan advantage" [1]. The decision effectively permits states to design voting maps favoring one party without legal challenge [1].
Unite America estimates over 400 of the 435 House seats are already effectively decided months before the November midterms, leaving less room for uncertainty in general elections [1]. This shift means elections are increasingly settled in party primaries, which tend to favor more ideologically extreme voters instead of the broader electorate. Robert Boatright, a political science professor, said, "It means that elections are just no longer really a barometer of how the public feels about politics" [1].
Dave Wasserman, senior editor at the Cook Political Report, explained the impact on electoral dynamics: "One party picking up 20 seats today is the equivalent to what snagging 40 or 50 used to be. When the general election is less of a toss-up, that means gloves come off in the primary" [1]. The prevalence of safe seats and packed primaries has also drawn more involvement from well-funded interest groups trying to influence outcomes [1].
Nick Troiano, executive director of Unite America, described the consequences: "The midterm elections will be the least competitive elections of our lifetime. Both parties are fighting fire with fire when it comes to gerrymandering — and the natural outcome is that the whole place burns down" [1].
The 2026 midterms will provide the first major test of these new district maps in a general election, with fewer opportunities for shifts in House control given the limited number of competitive races [1].