As Texas prepares to decide its next U.S. Senator in a high-stakes Republican primary runoff, the final days have brought a deluge of campaign ads, last-minute endorsements, and a fierce battle over the future direction of the state’s GOP. The race between incumbent Senator John Cornyn and Attorney General Ken Paxton—backed by former President Donald Trump—has spent nearly 14 months and $135 million to reach this pivotal moment, with Tuesday’s runoff marking the climax of a campaign that has exposed deep divisions within the Texas Republican Party.
The runoff, which follows a chaotic March primary where neither candidate secured a majority, has become a proxy battle between two visions of the party: Cornyn’s establishment approach versus Paxton’s populist, Trump-aligned insurgency. With the general election against Democratic nominee James Talarico looming, the outcome will determine whether Texas Republicans embrace a more moderate path or double down on the culture-war politics that have defined the party in recent years.
This election isn’t just about Texas—it’s about the soul of the national GOP. Cornyn, a 14-year Senate veteran and former Majority Whip, represents the party’s traditional leadership, while Paxton, a longtime Trump ally, embodies the MAGA movement’s rising influence. Their clash has drawn national attention, with Trump’s recent endorsement of Paxton—despite opposition from Senate Majority Leader John Thune and the GOP establishment—further intensifying the stakes.
Why This Runoff Matters: The Stakes for Texas and Beyond
The Texas Senate race is the most expensive primary in U.S. History, with $135 million spent over nearly a year and a half, according to recent reporting from the Texas Tribune. The sheer scale of the spending reflects how much is riding on the outcome:
- Texas’s political future: The Lone Star State is a critical battleground in national elections, and its Senate seat could shift the balance of power in Washington.
- GOP identity crisis: The race has laid bare tensions between the party’s establishment and its Trump-backed insurgents, with implications for future primary battles nationwide.
- Legal and ethical baggage: Paxton faces multiple investigations, including a federal securities fraud case, while Cornyn has faced criticism for his past bipartisan efforts, such as negotiating a gun safety bill.
- Down-ballot impact: The winner will likely influence Texas’s electoral map and judicial appointments, shaping the state’s political landscape for years.
For voters, the choice is stark: Do they want a senator who can work across the aisle, or one who prioritizes loyalty to Trump and conservative purity? The answer will have ripple effects far beyond Texas.
Trump’s Endorsement: A Game-Changer or a Liability?
Trump’s late endorsement of Paxton on May 20 sent shockwaves through the race. In a statement, Trump called Paxton a “great guy” and criticized Cornyn for lacking loyalty “when times were tough,” referencing Cornyn’s past skepticism about Trump’s electability. The endorsement came despite warnings from Senate Republicans, including Majority Leader John Thune, who had spent millions backing Cornyn.
“Ken Paxton is a true fighter for the people, and I am proud to endorse him in this critical race,” Trump said in a video message. “John Cornyn hasn’t been there for us when we needed him most.”
Paxton’s campaign immediately seized on the endorsement, airing ads featuring Trump’s voice touting Paxton’s record on issues like border security and opposition to “woke” policies. Cornyn, meanwhile, has framed the race as a choice between stability and chaos, warning that Paxton’s legal troubles and extreme positions could hurt Texas.
The Trump factor has dominated the final days, with both campaigns flooding Texas airwaves with ads. According to ad tracking data, Paxton’s campaign has outspent Cornyn’s in the final week, with a focus on rural and suburban areas where Trump’s influence remains strong.
The Issues: What Voters Are Talking About
While Trump’s endorsement has dominated headlines, the race has also focused on key policy differences:
- Border security: Paxton has made cracking down on illegal immigration a centerpiece of his campaign, while Cornyn has emphasized a more measured approach, including bipartisan efforts to secure the border.
- Abortion and social issues: Paxton has taken hardline positions, including supporting a near-total ban on abortion, whereas Cornyn has shown willingness to engage with moderate Republicans on reproductive rights.
- Election integrity: Paxton has been a vocal critic of mail-in voting and election reforms, while Cornyn has supported some bipartisan election security measures.
- Legal and ethical concerns: Paxton faces multiple investigations, including a federal case involving securities fraud and a state ethics probe. Cornyn has avoided such controversies, though his past bipartisan deals have drawn fire from the right.
For many Texas voters, the decision comes down to trust. Paxton’s supporters see him as a fighter against the establishment, while Cornyn’s backers view him as a steady hand who can deliver results in a divided Senate.
Who’s Winning? Polls and Projections
Public polling in the runoff has been closely divided, with most surveys showing a tight race. A recent University of Texas/Texas Tribune poll from May 20 showed Paxton leading Cornyn by 3 points among likely voters, though the margin has narrowed in the final days.
Demographic breakdowns reveal key battlegrounds:
- Suburban voters: Cornyn has traditionally performed well here, but Paxton’s campaign has made inroads with Trump’s endorsement.
- Rural areas: Paxton leads by double digits, reflecting his strong base among conservative activists.
- Women voters: Cornyn has held a slight edge, though Paxton has narrowed the gap with ads targeting female voters on crime and the economy.
Analysts suggest that turnout—particularly among younger voters and suburban Republicans—could decide the race. Early voting has been strong, with over 1 million ballots already cast, according to the Texas Secretary of State’s office.
The Bigger Picture: What Happens Next?
Regardless of who wins, the runoff has already reshaped Texas politics. The campaign has energized the base on both sides, with Cornyn’s supporters framing the race as a defense of institutional Republicanism and Paxton’s backers viewing it as a referendum on Trump’s leadership.
If Paxton wins, he would join a growing cohort of Trump-aligned senators, potentially shifting the Senate further to the right. If Cornyn prevails, it could signal a desire among Texas Republicans for a more pragmatic approach—though the party’s future direction remains uncertain.
The general election against Democratic nominee James Talarico is expected to be competitive, with the winner likely facing a tough race in November. Texas, once a reliable red state, has seen its political landscape shift, and this Senate race is a microcosm of those changes.
Where to Follow the Results
Results will begin streaming on Tuesday, May 27, with most precincts reporting by late afternoon. Key resources for tracking the election include:
- Texas Secretary of State’s official election website for real-time results and voter information.
- Texas Tribune’s live election coverage, including analysis and updates.
- The New York Times’ Texas election guide, with context on the candidates and issues.
For voters who haven’t yet cast their ballots, polling locations will remain open until 7:00 PM Central Time on Tuesday. Early voting results have already begun to trickle in, with some counties reporting higher-than-expected turnout.
Key Takeaways
- The Texas GOP Senate runoff is the most expensive primary in U.S. History, with $135 million spent over 14 months.
- Donald Trump’s endorsement of Ken Paxton has reshaped the race, injecting national attention into the final days.
- The outcome will determine whether Texas Republicans embrace a more moderate or Trump-aligned future.
- Key issues include border security, abortion, election integrity, and the candidates’ legal and ethical records.
- Polling shows a tight race, with suburban voters and early turnout likely deciding the winner.
The runoff is more than just a local election—it’s a test of the GOP’s direction and a bellwether for future primary battles. As Texas prepares to vote, the eyes of the nation will be on this pivotal race.
Results will be available starting at 7:00 PM CT on Tuesday, May 27. Stay tuned for live updates and analysis from World Today Journal.
What do you think? Will Cornyn’s experience or Paxton’s Trump-backed populism win the day? Share your thoughts in the comments below.