Ken Paxton Defeats John Cornyn in Texas GOP Senate Runoff, Will Face Democrat Talarico
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Texas Attorney General Ken Paxton defeated incumbent U.S. Senator John Cornyn in the Republican primary runoff on Tuesday. Paxton, who received a last-minute endorsement from former President Donald Trump, will now face Democratic state Representative James Talarico in the November general election. The race is now rated as 'Lean Republican' by the Cook Political Report.
Facts First
- Ken Paxton won the Republican nomination for U.S. Senate, defeating four-term incumbent John Cornyn by a wide margin.
- The victory followed an endorsement from former President Donald Trump during the early voting period.
- Paxton will face Democratic state Representative James Talarico in the November general election for the Texas Senate seat.
- The primary became the most expensive in Senate history, with Republicans spending over $100 million.
- A Democrat has not won a statewide office in Texas since 1994, though the race's rating has shifted from 'Likely' to 'Lean' Republican.
What Happened
Texas Attorney General Ken Paxton defeated U.S. Senator John Cornyn in the Republican primary runoff election on Tuesday, May 26, 2026. The Associated Press called the race for Paxton approximately one hour after polls closed. With 59% of votes counted, Paxton held 63.2% of the vote to Cornyn's 36.8%. Paxton received an endorsement from former President Donald Trump on May 19, 2026, during the early voting period. The winner of the Republican runoff will face Democratic nominee state Representative James Talarico in the November general election.
Why this Matters to You
The outcome of this primary could influence the balance of power in the U.S. Senate, where Republicans currently hold a slim majority. A more contentious general election in Texas, a state long considered safely Republican, may lead to a significant increase in political advertising and fundraising efforts. The race is already the second most expensive in the country this year, and that spending may intensify. For Texas voters, the result signals a shift in the state's Republican politics, potentially moving the party's center of gravity. The general election in November will determine who represents Texas in the Senate for the next six years.
What's Next
Paxton will now pivot to the general election campaign against Democrat James Talarico. The Cook Political Report has changed its rating for the Texas Senate race from 'Likely Republican' to 'Lean Republican' following the primary results. A recent poll indicated Talarico was leading each Republican candidate by a similar margin, with nearly one in five voters undecided. The National Republican Senatorial Committee (NRSC) did not mention Paxton in its statement, which may indicate a period of internal party reconciliation is needed. Senate Majority Leader John Thune (R-S.D.) had a phone call with Paxton on Wednesday, which could be a step toward unifying party support.