Bluffton, S.C — The man who would be president answers his own phone on the campaign trail. His motorcade is a silver Toyota Prius driven by his wife. His choicest sound bite — "Had I had the time and some national media exposure, I believe I'd be right up there in the top flank" — is delivered over lunch at a Wendy's near the "active adult" residential community where he'll address an audience of a dozen people. He's here in a state bordering his own, because, well, his own won't have him. Anyone else might become discouraged, but not Georgia's...