Trump's Cornyn endorsement hanging in the balance as Paxton tests the race

Trump was leaning toward endorsing Texas Sen. John Cornyn last week, but leaks to the press cooled that plan, and Paxton’s ultimatum—saying he might quit the runoff if the GOP voting-restrictions bill moves forward by lifting the filibuster—has stalled the effort. White House officials called Paxton's tactic a “genius move” to keep him in the race and pressure Senate leaders. Now Trump is floating tying an endorsement to passage of his SAVE America Act, complicating Republicans’ push to ditch the filibuster before the Texas runoff.