If you think standard political logic applies to Texas politics, you haven't been paying attention to Ken Paxton.
Most politicians hide when they face a mountain of negative ads, FBI investigations, and high-profile impeachments. Paxton doesn't. He leans in.
Texas Republicans are voting in the highly anticipated May 26, 2026, primary runoff for the U.S. Senate. The multi-million dollar showdown pits four-term incumbent Senator John Cornyn against Paxton, the current state Attorney General. For months, the Washington establishment and institutional donors assumed Cornyn's staggering financial advantage would put the challenger away. Cornyn and his allied groups outspent Paxton's camp by an astronomical margin, pouring roughly $90 million into an ad blitz intended to bury the attorney general under his own personal and legal controversies.
But anyone counting Paxton out forgets one fundamental truth about Texas election history. Ken Paxton doesn't just survive primary runoffs. He owns them.
The Math Behind the Overtime Specialist
Establishment candidates want to win outright in March because a high-turnout primary usually favors the recognizable, well-funded incumbent. Runoffs are an entirely different beast.
When the initial March 3 primary ended without either candidate securing a 50% majority, Cornyn held a narrow lead of 42% to Paxton's 40.5%. Congressman Wesley Hunt drew about 13.5% of the remaining vote. On paper, it looked like a competitive race heading into a conventional overtime period.
But history shows that primary runoffs drastically alter the electorate. Total turnout plummets. In a typical mid-term primary cycle, about 2 million out of Texas' 18.7 million registered voters participate in the initial Republican primary. By the time the late-May runoff rolls around—especially when scheduled right after Memorial Day—only the most dedicated activists show up to vote.
This drop-off plays directly into Paxton's hands. Data from a University of Houston Hobby School of Public Affairs poll conducted just weeks before the election revealed that Paxton held a 48% to 45% lead over Cornyn among likely runoff voters. The poll showed that voters who backed Wesley Hunt in March were breaking toward Paxton by a massive 19-point margin. Paxton's base is incredibly disciplined; 95% of his original March supporters stated they would return to the polls for the runoff, compared to 91% for Cornyn.
When turnout shrinks, the advantage shifts to the candidate with the most intense, unshakeable support. Paxton's coalition consists of hard-core, grassroots activists who view his legal battles not as a liability, but as proof that he's fighting the system.
A Career Built on Low-Turnout Victories
To understand why Paxton thrives in these conditions, look back at his political trajectory over the last two decades. He has repeatedly used the primary runoff system to leapfrog better-funded establishment choices.
- The 2002 House Race: In his very first run for Texas House District 70, Paxton didn't win the initial primary. He captured just 39.5% of the vote, forcing a runoff against Bill Vitz. Paxton capitalized on the lower turnout, energized his grassroots base, and crushed Vitz with 64% of the vote in the second round.
- The 2014 Attorney General Race: When Greg Abbott vacated the attorney general seat to run for governor, Paxton faced state Representative Dan Branch. In March, Paxton led but failed to clear the majority, getting 44.4% to Branch's 33.5%. With two months to organize, Paxton mobilized the state's rising Tea Party faction. He won the May runoff with a resounding 63.6% of the vote, despite losing the endorsement of every major Texas newspaper.
- The 2022 Re-election Campaign: Facing an aggressive challenge from Land Commissioner George P. Bush—scion of the ultimate Texas political dynasty—Paxton again found himself pushed to a May runoff. Bush ran on Paxton's pending indictments and ethical questions. Paxton ignored the noise, turned out the MAGA faithful, and secured a blowout 68% victory to win the nomination.
Paxton understands that a runoff isn't an extension of the general election. It's an internal party dispute where moderation is a weakness and ideological purity is currency.
The Power of the Donald Trump Factor
You can't analyze Paxton's runoff durability without looking at his alliance with Donald Trump. Paxton has long been one of Trump’s most vocal defenders, famously launching a 2020 lawsuit challenging the presidential election results in four battleground states.
That loyalty paid off at a critical moment. For weeks, Trump stayed on the sidelines of the 2026 Senate primary, causing anxiety for both campaigns. The silence ended on May 19, just one day after early voting began. Trump issued a full-throated endorsement of Paxton on social media, praising him as a fighter and blasting Cornyn for being unsupportive when times were tough.
The timing was devastating for Cornyn. Within 24 hours, Paxton and his allied super PAC, Lone Star Liberty PAC, pivoted their entire media operation to blanket the airwaves with Trump's endorsement. In a closed GOP loop where Trump's approval remains the ultimate golden ticket, this endorsement functions as an intense motivator for low-propensity voters who usually skip down-ballot runoffs.
Institutional Cash Versus Grassroots Reality
Cornyn's team built their strategy around an old political playbook: use a colossal war chest to define the opponent early and decisively. Backed by Senate Majority Leader John Thune and the Washington campaign apparatus, pro-Cornyn groups spent tens of millions of dollars airing highly critical ads, focusing heavily on a Waco sex abuse case and Paxton’s 2023 impeachment trial.
Cornyn argued that nominating Paxton would burden the party with legal drama, forcing the GOP to spend millions defending a safe Texas seat in November instead of funding competitive races in states like Georgia or North Carolina.
But the spending mismatch highlights a growing disconnect inside the modern GOP. Cornyn’s campaign and satellite groups outspent Paxton’s allies nearly ten to one on television and digital media by late spring. Yet, the polling barely budged.
Why? Because the voters who decide runoffs don't trust the institutions funding those ads. When a super PAC spends millions telling a hardline primary voter that Paxton is an outsider hated by the establishment, the voter doesn't reject Paxton. They like him more.
Actionable Takeaways for Following the Texas Results
If you want to understand how this race shakes out as the final numbers come in, don't just look at the raw statewide totals. Watch these specific indicators:
- Track the Suburban Collapse: Look closely at the major suburban counties around Houston, Dallas, and Austin (like Collin, Denton, and Fort Bend). If Cornyn cannot secure massive margins among college-educated suburbanites here, his path to victory disappears.
- Analyze the Turnout Percentage: If total voter turnout drops significantly below the 2.1 million who voted in March, it strongly favors Paxton's hyper-loyal base. High turnout gives the incumbent a cushion; low turnout spells disaster for the old guard.
- Watch the Hunt Voters: Check how rural and working-class districts that went heavily for Wesley Hunt in March vote in the runoff. If they break cleanly for Paxton as polling suggested, the establishment strategy has officially failed.
The era of the smooth, risk-averse institutional incumbent in Texas is facing its toughest test. Win or lose, Ken Paxton has permanently altered the playbook for surviving a political crisis, proving that in a Texas Republican primary, the grassroots will always value a combative fighter over a well-funded statesman.
