Incumbent Congress Members Ousted in 2026 Primary Wave

In the 2026 midterm primary cycle, a wave of incumbent defeats has reshaped both chambers of Congress. Seven House members and two Republican senators failed to secure renomination, joining Colorado Democrat Diana DeGette, New York Democrats Adriano Espaillat and Dan Goldman, Texas Democrats Al Green and Julie Johnson, Kentucky Republican Thomas Massie, Texas Republican Dan Crenshaw, Louisiana Republican Bill Cassidy, and Texas Republican John Cornyn among those ousted. Their challengers—ranging from Democratic Socialists of America activists to Trump-endorsed conservatives—won primaries held on Tuesday night and in preceding weeks.

Newsweek

Democratic primary voters expressed frustration with perceived moderation, demanding candidates who will adopt a more combative stance toward President Donald Trump. Simultaneously, President Trump actively backed primary challengers against Republicans he deemed insufficiently loyal, a strategy described by political scientist Stephen Farnsworth as “very aggressive in purging Republican incumbents.” Redistricting in Texas also forced incumbents Al Green and Julie Johnson into the same or altered districts, amplifying generational and ideological contests.

Newsweek

• Diana DeGette (CO-1) lost to DSA member Melat Kiros.

Newsweek

• Bill Cassidy (LA) was defeated by Trump-backed Julia Letlow, who advanced over state Treasurer John Fleming.

Newsweek

• John Cornyn (TX) fell to Attorney General Ken Paxton, a Trump-endorsed challenger.

Newsweek

• Dan Crenshaw (TX-22) was unseated by Steve Toth, another Trump-aligned candidate.

Newsweek

• Thomas Massie (KY-4) lost to Ed Gallrein, a Trump-backed contender.

Newsweek

• Adriano Espaillat (NY-13) was ousted by progressive activist Darializa Avila Chevalier.

Newsweek

• Dan Goldman (NY-10) fell to former city Comptroller Brad Lander.

Newsweek

• Al Green (TX-9) was defeated by Christian Menefee, a younger Democrat.

Newsweek

• Julie Johnson (TX-23) lost to former Representative Collin Allred after redistricting made the seat more conservative.

Newsweek

• House incumbents: 7 defeated (2026) vs. 4 in 2024, 8 in 2020 (record for a non-redistricting cycle), 4 in 2018, 5 in 2016.

Newsweek

• Senate incumbents: 2 GOP senators defeated (2026); previous GOP Senate primary losses occurred in 2017 (Luther Strange), 2012 (Richard Lugar), and 2010 (Lisa Murkowski, who later won the general election via write-in).

Newsweek

Redistricting years (2012, 2022) saw higher totals (12 and 15 incumbents, respectively) due to intra-incumbent contests.

Newsweek

President Trump publicly endorsed Julia Letlow, Ken Paxton, Steve Toth, and Ed Gallrein, signaling direct involvement in Republican primaries. The Justice Democrats organization backed progressive challengers such as Melat Kiros, Darializa Avila Chevalier, and Brad Lander, indicating coordinated left-leaning support. Decision Desk HQ called the DeGette–Kiros race for the challenger at 10:31 p.m. ET on Tuesday.

Newsweek

Progressive challengers criticized incumbents for insufficient support of issues such as Israel and for perceived moderation. Republican incumbents faced Trump-driven attacks for votes against his agenda, including Massie’s opposition to the One Big Beautiful Bill Act and his role in seeking Justice Department release of Jeffrey Epstein files. Age and generational arguments also featured, as seen in the Green–Menefee contest.

Newsweek

Current reporting lists seven House and two Senate incumbent defeats, but additional primaries remain pending, leaving the final tally uncertain. No Democratic Senate incumbent losses are documented in the sources, creating a gap in the full partisan impact assessment.

Newsweek

• “voters often want what they do not have, and that regularly leads to painful midterms for the president’s party.” — Stephen Farnsworth, Political Science Professor, University of Mary Washington

Newsweek

• “I think President Trump’s time has passed him by,” — John Cornyn, U.S. Senator, Texas

Newsweek

• “The lesson to be learned is...you've got to get the truth out,” — Dan Crenshaw, U.S. Representative, Texas

Newsweek

• “You gotta try. But ultimately, this is a question for the American people. Are you going to believe everything you read online or that's sent to you in your mail?” — Dan Crenshaw, U.S. Representative, Texas

Newsweek

The incumbent turnover signals heightened intra-party volatility, with progressive challengers poised to reshape Democratic caucus composition and Trump-aligned Republicans likely to steer GOP policy toward a more hard-line agenda. These primary outcomes may influence candidate recruitment, campaign financing, and overall electoral strategy as the November 2026 general election approaches.

Newsweek