The Supreme Court just cleared the way for a redistricting demolition derby, and the 2026 midterm House races will pay the price with historically low competition levels.
In a Wednesday ruling, the Court determined that partisan gerrymandering can shield voting maps from legal challenges even when they limit minority representation. Justice Samuel Alito wrote that the Voting Rights Act does not prevent states from drawing districts "based on nonracial factors, including to achieve partisan advantage."
The numbers tell the story of a rigged playing field. The Cook Political Report currently labels just 16 of 435 House races as true toss-ups. Compare that to the final 2024 ratings, which had 22 toss-ups, or 2022's 36. Meanwhile, seats leaning safely Democratic or Republican have grown. Unite America estimates that over 400 House seats are already decided before voters cast a ballot.
Dave Wasserman, Cook's senior editor, says the math of competitive advantage has fundamentally shifted. A single-party wave that flips 20 seats today would have gained 40 or 50 a generation ago. The impact ripples through campaign strategy: even massive public backlash struggles to dislodge entrenched incumbents.
Nick Troiano, executive director of election reform group Unite America, framed the partisan arms race bluntly: "Both parties are fighting fire with fire when it comes to gerrymandering, and the natural outcome is that the whole place burns down." He calls the 2026 cycle "the least competitive elections of our lifetime."
The real consequence isn't November. It's the primary. When general election outcomes are baked in, candidates compete fiercely in party contests where turnout skews toward ideological purists and activist bases, not the broader electorate. Clark University political scientist Robert Boatright explains the trap: "Elections are just no longer really a barometer of how the public feels about politics."
Incumbents face pressure to perform for primary voters, sometimes adopting positions at odds with their districts' broader electorate. Well-funded interest groups capitalize on this dynamic, funneling money into safe-seat primaries to shape nominees who may lack genuine district-wide support.
The downstream effects compound. Voter participation drops in non-competitive races, and winning candidates feel less accountable to populations that never threatened their reelection. Kareem Crayton, vice president of the Brennan Center's Washington office, warns this "makes people less willing to feel accountable when they're elected, and it ultimately creates greater distance and a mismatch between the people who are elected and the electorate."
Reform groups are pushing alternatives: open primaries similar to systems in Washington, California, and Alaska that allow all voters to participate regardless of party affiliation. The National Conference of State Legislatures reports 17 states still operate closed or partially closed primary systems, giving party establishments outsized control over nominee selection.
Author James Rodriguez: "The Court just handed both parties a permission slip to carve out their dream districts, and the voters are left holding nothing but a rubber stamp."
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