Texas Attorney General Ken Paxton trounced incumbent Senator John Cornyn for the GOP Senate nomination yesterday. Paxton’s 64% to 36% win was a humiliating repudiation of the GOP establishment. Texas voters rejected the party’s warnings that Paxton was a loser and Cornyn was a winner. They voted for a fighter, which is why President Trump endorsed Paxton. Over and over GOP consultants insisted that if Paxton won the nomination, the party would have to spend $100 million defending the seat. Well, they just wasted $100 million trying to elect John Cornyn. That money could have been better spent in states like Georgia, Maine, Michigan and North Carolina—all states with close Senate races.