Texas Attorney General Ken ⁠Paxton ousted four-term US Senator John Cornyn on Tuesday, riding President Donald ⁠Trump’s endorsement to a run-off victory for the Republican Senate nomination, US media projected. The race was called shortly after polls closed in Texas’ westernmost counties, which are in a separate time zone from most of the state. Paxton’s victory will force Cornyn into retirement early next year – and the Republican political establishment in Washington into embracing a candidate