With the job of attorney general of Texas open for the first time in a decade, Mayes Middleton, a state senator and oil company president, and Chip Roy, a hard-line congressman, are fighting for the R...

NBC News projects that Trump-backed candidate Ken Paxton has defeated Sen. John Cornyn in the Republican Senate primary runoff in Texas.

Paxton will face Democratic state Rep. James Talarico in a November race that could become key to the fight for the Senate majority.