Even a half hour after Ron Paul's "Revolution" rally ended in downtown Manchester, there was a crowd larger than other candidates could only hope to draw. The campaign estimated that as many as 800 people showed up as the Texas congressman kicked off a canvassing effort in New Hampshire's three largest cities. The campaign gave out buttons asking: "Who is Ron Paul?" But who are Ron Paul's supporters? "I think they're new to the process," said Paul's son, Rand Paul. "We definitely have Democrats that are crossing over, Libertarians crossing over, Independents crossing over. And I think the people that...