Politics  | 

Costliest Senate Primary Ever Is About to Come to a Head

Texas runoff on Tuesday pits scandal-plagued Ken Paxton against well-funded incumbent John Cornyn
Posted May 26, 2026 6:58 AM CDT
GOP Showdown in Texas Tests Trump's Clout
This photo combination shows Texas Attorney General Ken Paxton, left, in Dallas, and Sen. John Cornyn, R-Texas, in Austin, Texas, both on March 3.   (AP photo/Julio Cortez, Jack Myer)

Texas Republicans are about to find out whether John Cornyn's long resume can beat President Trump's endorsement of his opponent. The four-term senator faces state Attorney General Ken Paxton in a GOP runoff on Tuesday that's become a test of Trump's pull and the party's appetite for risk in a pricey, key state, per the Washington Post. Public polls give Paxton, who remains under a cloud of corruption and misconduct allegations, an edge, boosted by a late Trump endorsement that one Paxton ally dubbed "the kiss of death" for Cornyn. Based on that data, the Hill notes that Cornyn would need a "Texas miracle" to prevail over Paxton.

Establishment Republicans have lined up behind Cornyn, who has argued that Paxton's baggage and weak fundraising would force them to pour "hundreds of millions" into Texas and still risk losing to Democrat James Talarico, a strong fundraiser in a state where campaigns routinely cost nine figures, per the Post. Cornyn's allies warn that a Paxton win could drain resources from tight Senate contests in Maine, Ohio, and North Carolina and drag down House candidates in Texas. Paxton backers counter that party leaders must fully support him if he prevails.

The AP notes that this race is just the latest in which "Trump has sought to punish a Republican he sees as insufficiently loyal," as Kentucky Rep. Thomas Massie and Louisiana Sen. Bill Cassidy can attest. One thing is already clear: With more than $90 million spent just by Cornyn and his allies so far, this has become the costliest Senate primary in US history, per the Post.

Politico notes that the runoff also has some in the GOP worried that this "fight between two giants" could end up hurting the party leading into the general, as Daniel Garza, president of the conservative LIBRE Initiative, puts it. "Post-runoff, you're going to have to mend a lot of fences," Garza notes. PBS has more on Tuesday's vote in the Lone Star State.

Read These Next
Get the news faster.
Tap to install our app.
X
Install the Newser News app
in two easy steps:
1. Tap in your navigation bar.
2. Tap to Add to Home Screen.

X