Republican presidential candidate Ted Cruz on Thursday said front-runner Donald Trump had defied “common sense” and embraced political correctness by coming out against North Carolina’s law barring people from using public restrooms of the opposite sex. “He said he thought men should be able to go into the girls bathroom if they want,” scoffed Mr. Cruz, a U.S. senator from Texas. “Let me ask you, have we going stark raving mad? This is political correctness. This is nonsense.”