•Trump campaign is ugly, and could be fatalDes Moines, Iowa: At her campaign launch in New York last month Hillary Clinton appeared polished and implacable, engaged but not engaging. At his in Miami, Jeb Bush looked better than he had in earlier appearances, but still something was amiss. He has yet to lose a certain flatness. Last weekend at a rally in smalltown Iowa, Donald Trump looked like he was having an absolute ball. So did his audience. Trump bounded onstage to the cheers of a full house of around 700 at a high school auditorium. Another 500 or so...