Ken Paxton vs. John Cornyn: The Texas Senate Runoff That Could Reshape the GOP
A new poll shows Paxton leading the four-term incumbent 47%-42% heading into the May 26 runoff. If he wins, a senator who survived impeachment and federal investigations becomes the face of MAGA governance in Washington.
What Is Trending — And Why
As of April 2, 2026, "Ken Paxton" is trending on X. A new GQR poll commissioned by the Senate Majority PAC — a Democrat-aligned organization — shows Texas Attorney General Ken Paxton leading incumbent Republican Senator John Cornyn 47% to 42% among likely GOP runoff voters. The poll was conducted March 19–23 among 600 likely Republican primary runoff voters, with a margin of error of ±4 points.
The Texas Republican Senate runoff is set for May 26, 2026. The winner will face Democratic nominee James Talarico — a state representative and Presbyterian seminary student — in the November 3 general election.
All major election forecasters — Cook Political Report, Inside Elections, and Sabato's Crystal Ball — currently rate the general as "Likely Republican," meaning whoever wins the GOP runoff is heavily favored to claim the seat. But that assumption depends on which Republican wins.
Who Is Ken Paxton?
Ken Paxton, 63, has served as Texas Attorney General since January 2015 — over a decade in the role. He is one of the most nationally prominent Republican attorneys general in the country, known for:
- Lawsuits against Democratic administrations. Paxton filed or joined more than 80 lawsuits against the Obama and Biden administrations, challenging federal immigration policy, the Affordable Care Act, COVID mandates, and environmental regulations.
- The 2020 election lawsuit. After the 2020 presidential election, Paxton filed a lawsuit before the U.S. Supreme Court seeking to overturn election results in Georgia, Michigan, Pennsylvania, and Wisconsin. The Court dismissed it for lack of standing.
- Securities fraud charges. Paxton was indicted on securities fraud charges in 2015 — a case that dragged on for nearly a decade before being dropped in 2023 amid a change in the special prosecutors handling the case.
- Impeachment and acquittal. In May 2023, the Texas House of Representatives impeached Paxton on 20 articles, including allegations of bribery, obstruction of justice, and abuse of office linked to his relationship with campaign donor Nate Paul. The Texas Senate acquitted Paxton on all 16 articles brought to trial on September 16, 2023. Four additional articles were dismissed.
- Alliance with Trump. Paxton has described himself as one of Trump's most loyal allies. During the 2024 campaign, Trump called Paxton "one of the great attorneys general of the United States." Trump has not formally endorsed in the runoff.
Paxton announced his U.S. Senate candidacy on April 8, 2025, appearing on Fox News' The Ingraham Angle. His campaign message: Cornyn is a Washington insider who has drifted from conservative principles.
Who Is John Cornyn?
John Cornyn, 73, is a four-term U.S. Senator who has represented Texas since 2002. He currently serves as Senate Majority Whip, one of the most powerful positions in the upper chamber. His record includes:
- A consistently conservative voting record. Cornyn has a lifetime American Conservative Union rating above 80%, but has occasionally broken with the hard-right base — most notably on gun legislation and immigration.
- The Bipartisan Safer Communities Act (2022). Cornyn was one of the Republican lead negotiators on the first significant federal gun safety legislation in nearly 30 years. It included enhanced background checks for buyers under 21, funding for red flag laws, and closing the "boyfriend loophole." This vote is the single biggest vulnerability his campaign faces with the MAGA electorate.
- "Amnesty" attacks. Cornyn helped craft the 2013 "Gang of Eight" comprehensive immigration reform bill, which included a path to legal status for undocumented immigrants. The bill passed the Senate but died in the House. His opponents still use the word "amnesty" against him.
- Trump ally, but on his own terms. Cornyn has generally supported Trump's agenda in the Senate, including voting against conviction in both impeachment trials. But he is part of the institutional Republican establishment — something Paxton has weaponized.
Cornyn's campaign has argued he is the "only candidate with a proven record of showing up to champion President Trump's agenda in the Senate." The National Republican Senatorial Committee (NRSC) backs Cornyn, warning that Paxton's baggage could cost the party the seat in November.
The Polling Picture
The March 3, 2026 Republican primary produced no majority winner:
- John Cornyn: 43%
- Ken Paxton: 41%
- Wesley Hunt (U.S. Representative): ~10%
- Remaining candidates: ~6%
Under Texas law, if no candidate receives a majority (50%+1), the top two advance to a runoff. Cornyn and Paxton will face each other on May 26.
The Senate Majority PAC poll — conducted by nonpartisan firm GQR — found Paxton ahead 47-42. Key numbers from the survey:
- Enthusiasm gap: 85% of Paxton voters rated themselves a 10/10 on likelihood to vote, vs. 70% of Cornyn voters.
- Firm support: 38% of voters called themselves "strong Paxton supporters" vs. 30% for Cornyn.
- Favorability: Paxton: 56% favorable, 43% unfavorable. Cornyn: 47% favorable, 51% unfavorable — the incumbent is underwater with his own party's runoff electorate.
- The electorate: 84% of likely runoff voters identify as MAGA supporters. 69% call themselves "strong Republicans."
A parallel straw poll at the Conservative Political Action Conference (CPAC) gave Paxton 67% support to Cornyn's 21%.
Earlier polling from Texas Public Opinion Research (March 7–8, 781 likely voters) also showed Paxton with a lead, though that survey preceded the March 3 primary results.
Note: The poll was commissioned by a Democratic PAC. While the firm (GQR) is nonpartisan, Democrats have an obvious interest in Paxton winning — he is considered a weaker general election candidate than Cornyn. The polling methodology was standard (live calls + text-to-web, MOE ±4), but context matters.
Who Is James Talarico?
James Talarico, 36, won the Democratic nomination on March 3 by defeating U.S. Representative Jasmine Crockett. A former educator, Talarico has served in the Texas House of Representatives since 2018 and is currently enrolled in a Presbyterian seminary. His campaign platform is aggressively progressive: Medicare for All, green energy transition, anti-corruption reform.
Texas has not elected a Democrat to statewide office since 1994. But Democrats point to demographic shifts — rapid growth in Austin, Houston, Dallas, and the Rio Grande Valley suburbs — as reasons to believe the state is genuinely competitive. All major forecasters still rate the general as Likely Republican. The race's national significance depends heavily on who wins the GOP runoff.
Why the Runoff Winner Matters Beyond Texas
The Texas Senate seat is significant at several levels:
Senate math. Republicans currently hold the Senate. A Paxton win in the primary followed by an unexpected general election loss — possible given his impeachment history and ongoing controversies — could narrow the GOP margin. Democrats need a net gain of four seats to reclaim a majority (assuming the White House stays Republican).
The Cornyn question. Cornyn is Senate Majority Whip — the vote-counter who delivers majorities for Trump's legislative agenda. If he loses in a primary, it is a significant repudiation of the institutional Republican Party by its own base.
The Paxton signal. A Paxton primary win would signal that MAGA grassroots voters will reliably back candidates with serious legal and ethical baggage if those candidates are sufficiently anti-establishment. It would also send a message to every Republican incumbent: your base doesn't care about your record; it cares about your posture.
NRSC vs. MAGA base. The Republican establishment is actively working against Paxton. If he wins anyway, it demonstrates the limits of institutional GOP power in primary elections — a lesson with implications well beyond Texas.
What Happens Next
- May 26, 2026: Texas Republican Senate runoff. Early voting begins in mid-May.
- November 3, 2026: General election. Whoever wins the runoff faces James Talarico (D).
- Trump endorsement: Trump has not endorsed in the runoff. The GQR poll found his endorsement of Cornyn would only marginally shift the race — Paxton maintained his lead in split-sample testing regardless of Trump's position.
Sources
- Ballotpedia — United States Senate election in Texas, 2026
- Washington Examiner / GQR Poll — Paxton leads Cornyn in Texas runoff as poll shows incumbent's support lagging (April 2026)
- Newsweek — John Cornyn's Chances of Losing to Ken Paxton in Texas — New Poll (April 2026)
- Politico — MAGA loves scandal-ridden Ken Paxton. Can they get him to the Senate? (March 2026)
- NBC News — Texas Senate Primary Election 2026 Live Results
- The Guardian — James Talarico wins Democratic primary for US Senate in Texas (March 2026)