Supporters of the libertarian, anti-war Republican congressman from Texas are among the most devoted and intense in this year's presidential cycle, which helps explain how Paul, despite starting off as a fringe candidate, was able to raise $19 million in the fourth quarter of 2007 — more than any other Republican in the race. What no one seems to know — and this includes the Paul campaign — is whether that passion and money will translate into an appreciable turnout in tonight's caucuses. Polls suggest the answer is no. But other campaigns worry that Paul's supporters will show up in big enough numbers in some precincts to have a real impact on the outcome of the race.