Ted Cruz on Wednesday mocked Donald Trump for bowing out of a debate next week in Salt Lake City, and the Texas senator vowed to call out the GOP front-runner at a gathering of a major pro-Israel lobby group next week. Trump said earlier in the day that he would not participate in the Fox News debate in Utah on Monday, and John Kasich quickly said that he wouldn't attend if Trump didn't. Later on Wednesday, Fox News formally canceled the event. Trump said he would use his time instead on Monday to address a conference hosted by the American...