GOP Sen. John Cornyn is facing a challenge from state Attorney General Ken Paxton in what figures to be an expensive and personal contest.

Former Texas Republican Party Chairman Matt Rinaldi, who is close to Attorney General Ken Paxton, didn't waste any time backing him in the campaign to unseat Sen. John Cornyn. In an interview with CBS News Texas on Wednesday,

Sen. Ted Cruz (R-TX) is staying neutral in a bitter primary for Sen. John Cornyn’s (R-TX) Senate seat, a race that has already begun to splinter Texas’s congressional delegation. In a striking departure from Senate tradition,