Will turnout in the Texas Republican Senate primary runoff be between 600,000 and 900,000 voters?

Prediction markets put the probability at 31%: Will turnout in the Texas Republican Senate primary runoff be between 600,000 and 900,000 voters. Currently, markets are divided (31% YES, 69% NO). Democrat Analilia Mejia projected winner in New Jersey House race.

What’s Happening

The Texas Republican Senate primary runoff between incumbent Senator John Cornyn and state Attorney General Ken Paxton has advanced to a May 26, 2026 vote, following a contentious first round where neither candidate secured a majority. The race has drawn national attention, with Cornyn blasting Paxton as "self-centered" after the primary forced a runoff, while Paxton has leaned on his base of conservative activists. The outcome hinges on voter mobilization, with the key metric being turnout in the Texas Republican Senate primary runoff—specifically whether it falls between 600,000 and 900,000 voters. In the March primary, roughly 1.1 million Republicans cast ballots, but runoff turnout historically drops by 30-50%, making the 600,000–900,000 range a plausible target. [NBC News, Apr 22]

Recent polling adds urgency to the race, as Democrat James Talarico has shown surprising strength in head-to-head matchups against both Cornyn and Paxton. A Newsweek poll from April 28, 2026 found Talarico leading Cornyn by 2 points and Paxton by 4 points, signaling a potential shift in the GOP stronghold. Talarico has ramped up outreach to Black voters, telling the Houston Chronicle on April 23 that "there is no way to win Texas without Black voters." This Democratic momentum could depress Republican enthusiasm, directly affecting turnout in the Texas Republican Senate primary runoff. If GOP voters perceive a competitive general election, they may be more motivated to vote in the runoff, pushing turnout above 900,000; conversely, complacency could keep it below 600,000. [Newsweek, Apr 28]

Procedural milestones will shape the final turnout figure. Early voting for the runoff begins May 12, and both campaigns are investing heavily in get-out-the-vote operations. The Cornyn campaign has emphasized his seniority and committee assignments, while Paxton has focused on anti-establishment messaging. Meanwhile, the Democratic gubernatorial primary runoff between Gina Hinojosa and Greg Abbott is also drawing attention, with a Newsweek poll on April 28 showing Abbott leading Hinojosa 48% to 43%. The interplay between these races could drive cross-party interest, but the core question remains whether turnout in the Texas Republican Senate primary runoff will land between 600,000 and 900,000 voters. The final tally will be certified by the Texas Secretary of State on June 5. [Houston Chronicle, Apr 23]

Traded on Polymarket — $53K Volume

Lower-volume market on Polymarket ($53K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 12c YES.