Ten incumbent House lawmakers have lost primaries during the 2026 election season, and the list includes three Republicans and seven Democrats. The 2026 US House incumbent primary defeats have already reset several seats before the general election, including Dan Crenshaw’s loss in Texas' 2nd Congressional District.
Crenshaw, who has served in the House since 2019, lost the GOP primary to Steve Toth. Thomas Massie, who has served in the U.S. House of Representatives since late 2012, also lost the Republican primary in Kentucky's 4th Congressional District to Ed Gallrein, while Andy Ogles lost the GOP primary in Tennessee's 5th Congressional District to Charlie Hatcher.
Texas and Tennessee U
The Texas and Tennessee U.S. House incumbents faced redistricting in their states that applied to this cycle, adding another layer to races already decided by primary voters. That left Crenshaw and Ogles with no path through their parties’ primaries, even as the broader count of defeated incumbents climbed to 10.
Three Republican incumbents and seven Democratic incumbents have now fallen in primaries this election season. The seven Democratic defeats include Al Green, Julie Johnson, Dan Goldman, Adriano Espaillat, Diana DeGette, Shri Thanedar and John Larson, all of whom lost primaries without the opponents listed in the available facts.
Thomas Massie and Ed Gallrein
The Massie-Gallrein race was reported as the most expensive U.S. House primary contest ever, making that defeat the financial outlier in the group. The result leaves the open-seat math different in Kentucky's 4th Congressional District and adds a high-cost example to a year when incumbency has not protected either party.
Andy Ogles lost despite having Donald Trump’s endorsement, a complication that separates his race from a simple party-line read of the result. For readers tracking the 2026 election season, the practical takeaway is straightforward: these House seats are now moving into the general election without the incumbent on the ballot, and the party nominees are already set in the races named here.
House Republican Conference
The count may still rise if more incumbents lose primaries, but the current total already shows how uneven the season has been across states and parties. What matters next is whether the defeated incumbents’ districts hold in November without them, or whether the primary results simply mark the start of a wider House turnover.
