The top Senate Republican super PAC projected it will cost tens of millions of dollars to defend incumbent Sen. John Cornyn (R-TX) as numerous polls show he is trailing Attorney General Ken Paxton in the 2026 Senate primary.

The Senate Leadership Fund gave a presentation last week, according to Punchbowl News, and urged donors to help fund Cornyn’s reelection campaign. It argued that the incumbent’s loss could cost the GOP more in a general election race should Paxton secure the nomination.