Talk about political whiplash. Exactly one week ago, 2012 Republican presidential nominee Mitt Romney -- in his effort to defeat Donald Trump -- campaigned in Ohio with John Kasich, telling the state's voters to cast ballots for their governor. "Unlike the other people running, he has a real track record," Romney said of Kasich. "He has the kind of record that you want in Washington, and that's why I'm convinced that you're going to do the right thing tomorrow." Today, however, Romney's voice appears on robocalls in Arizona and Utah, telling these voters to side with Ted Cruz -- and...