Last Friday night, because of threatened and actual violence from the likes of Black Lives Matter, Bernie Sanders supporters, Moveon.org, George Soros paid-for La Raza and even Bill Ayers, Donald Trump was forced to cancel his rally in Chicago. Naturally in short order the cable networks (including Fox News) got comments from each of Trump’s opponents in the Republican primaries. When I saw Ted Cruz getting ready to speak my stomach tightened. I am a strong Trump supporter but I have a deep respect for Cruz’s intellect and quick wit. I honestly thought he would say something like “I disapprove...