The window for de-escalation in Texas’ high-stakes Republican Senate primary has officially closed, setting the stage for a costly and combative runoff between John Cornyn and Ken Paxton. Neither candidate withdrew before the 5 p.m. Tuesday deadline, ensuring both will appear on the May 26 ballot and extending what is shaping up to be one of the most contentious intraparty battles in recent state history.
The runoff follows a March 3 primary in which Cornyn outperformed expectations and secured a first-place finish, though without enough support to avoid a second round. In the immediate aftermath, President Donald Trump signaled an intention to intervene, indicating he would soon endorse one of the candidates and urging party unity ahead of a general election matchup against James Talarico, the likely Democratic nominee.
Despite that early indication, nearly two weeks passed without an endorsement from Trump. His silence proved consequential. With the withdrawal deadline now passed, both campaigns are locked into a prolonged and expensive runoff, regardless of any late-breaking endorsement.
Early speculation suggested Trump might favor Cornyn, bolstered by pressure from senior Republicans including John Thune. Allies of the incumbent senator have argued that Paxton could struggle in a general election and potentially drain national Republican resources. However, Paxton complicated that narrative by making clear he would not exit the race simply due to a lack of presidential backing.
Instead, Paxton reframed the contest around a key legislative priority energizing Republican voters: the SAVE America Act. He proposed that he would consider stepping aside if Senate Republicans took aggressive action to pass the bill, including eliminating the filibuster. The proposal shifted the runoff debate away from electability and toward ideological commitment and legislative tactics.
The SAVE America Act, strongly supported by Trump, would impose stricter voting requirements, including proof of citizenship for voter registration and expanded identification rules at polling places. The measure also aligns with broader Republican priorities on election integrity and social policy. However, it faces steep odds in the Senate, where Democrats remain unified in opposition and procedural hurdles like the filibuster require a 60-vote threshold.
On the same day the withdrawal deadline passed, the Senate moved to begin debate on the legislation. Cornyn joined fellow Republicans in advancing the bill procedurally, while also evolving his stance on the filibuster. Long a defender of the rule, Cornyn recently expressed openness to reforming or eliminating it to pass the legislation, marking a notable shift in position.
Even so, Paxton has continued to argue that Cornyn’s approach lacks urgency and effectiveness, attempting to cast the senator as insufficiently committed to delivering on conservative priorities.
Meanwhile, Trump’s position remains fluid. He has indicated that the fate of the SAVE America Act will heavily influence his endorsement decision, while also expressing mixed views on both candidates’ strengths. His hesitation has only heightened uncertainty in the race, leaving both campaigns to compete aggressively for grassroots support and donor backing.
