Faced with this terrifying prospect, Democrats try to console themselves with the mantra that Hillary has a better ground game — polling data and grassroots organization — than Donald. But ED KLEIN CONFIDENTIAL recently discovered that this mantra is a myth. We spoke to an election expert who has visited many of Hillary's campaign offices, where he interviewed staffers and found that the Clinton operation is "chaotic." "There are too many people giving orders and a lot of the effort is at cross purposes," the expert told us. "Hillary often goes around [campaign manager Robby] Mook and other top people...