Welcome to The Campaign Moment, where the last major non-Trump and non-Biden candidate is now out. The big moment Today the key moment is Nikki Haley dropping out of the presidential race the morning after Super Tuesday and effectively bringing the Republican primary contest to an end. Haley announced her exit Wednesday after winning the Washington, D.C., primary on Sunday and Vermont on Super Tuesday, but losing more than 20 other contests to Donald Trump. “I said I wanted Americans to have their voices heard,” Haley said. “I have done that. I have no regrets.” Haley declined to endorse Trump...