“After receiving a coveted Senate endorsement from President Trump last week, Texas Attorney General Ken Paxton took an early victory lap,” the Wall Street Journal reports.“Paxton released an ad touting the endorsement before quickly pivoting to one targeting Democratic nominee James Talarico. He asked his rival in the Republican primary, longtime Sen. John Cornyn, to stop the negative attack ads for the final days of the ugly race.”“Cornyn responded with a definitive no.”Said Cornyn: “Judgment day is coming for Ken Paxton.”