The first Rasmussen Reports telephone survey of Iowa’s Likely Caucus Participants shows that Minnesota Congresswoman Michele Bachmann attracts 22% support, while former Massachusetts Governor Mitt Romney earn 21%. Just slightly behind is Texas Congressman Ron Paul at 16%, followed by Texas Governor Rick Perry at 12% and former Minnesota Governor Tim Pawlenty at 11%.

Overall, just 28% of potential Iowa Caucus participants are absolutely certain of how they will vote, while the rest could change their mind. Among those who are certain of their vote, Ron Paul is on top at 27%.