Attorney General Ken Paxton on Tuesday launched a Senate campaign against Republican incumbent John Cornyn, setting up a potentially bruising 2026 primary that could change the face of the Texas GOP.

Texas Attorney General Ken Paxton launched his bid for the U.S. Senate Tuesday after weeks of buzz surrounding whether he would challenge incumbent U.S. Sen. John Cornyn.

Texas Attorney General Ken Paxton on Tuesday night announced a primary challenge against longtime Sen. John Cornyn, setting the stage for a battle between two politicians representing different parts of the Republican Party.