He is now #4 in the polls, ahead of Fred and McCain, and moving up. And as the Iowa Independent honestly notes:

“Paul’s support comes from the least likely corners of Iowa, making it very difficult to measure with “likely voter” polls. Cynics expect his unlikely coalition to stay home on caucus night, and they might; but if the depth of a candidate’s support is one measure of his likely success in the caucuses, Paul has the rest of the field beat. While Huckabee, Romney, Giuliani, former Sen. Fred Thompson, and Sen. John McCain appear to swap supporters every few weeks, Paul’s fans remain squarely in his corner. And there is the oft-ignored fact that polls show that a majority of likely GOP caucus-goers favor withdrawal from Iraq within six months, which many analysts are hard-pressed to explain.”

Mark that: In antiwar Iowa, in terms of dedicated supporters, “Paul has the rest of the field beat.” (Thanks to Brad Funkhouser.)