Republican Texas Attorney General Ken Paxton said on Tuesday he will challenge Republican U.S. Senator John Cornyn from Texas in the 2026 primary, adding he will support President Donald Trump's agenda.

Texas Attorney General Ken Paxton, a close ally of President Donald Trump, announced Tuesday he will challenge Sen. John Cornyn (R-Texas) in the 2026 primary

AUSTIN, Texas (AP) — Texas Attorney General Ken Paxton is running for the U.S. Senate in a primary challenge against Republican Sen. John Cornyn, setting up what is likely to become one of the GOP’s most contentious and expensive contests of 2026.