Former Massachusetts Governor Mitt Romney continues to lead the race for the Republican nomination, but Michele Bachmann has surged into second place following her Monday night entry into the campaign.

A new Rasmussen Reports national telephone survey of Likely GOP Primary Voters, taken following the candidates’ Monday night debate, shows Romney earning 33% support, with Minnesota Congresswoman Michele Bachmann a surprise second at 19%. Georgia businessman Herman Cain is in third place with 10% of the vote.

Former House Speaker Newt Gingrich picks up nine percent (9%) support, followed by Texas Congressman Ron Paul with seven percent (7%), ex-Minnesota Governor Tim Pawlenty at six percent (6%) and former Pennsylvania Senator Rick Santorum also earning six percent (6%). Former Utah Governor Jon Huntsman, who did not participate in the debate but is expected to announce his candidacy on Tuesday, gets two percent (2%) of the vote. Eight percent (8%) prefer some other candidate. (To see survey question wording, click here.)

Romney and Bachmann are tied among primary voters who say they are Tea Party members, with 26% support each. Romney holds a 36% to 16% lead over the congresswoman among non-members. Most primary voters regard all the candidates with the exception of Huntsman as conservative, but Bachmann is seen as the most conservative.

In late April, billionaire developer Donald Trump led the pack with 19% support, followed by Romney at 17% and former Arkansas Governor Mike Huckabee with 15%. Trump and Huckabee have since announced that they are not running. Bachmann was the leader among the second-tier candidates at that time.

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The survey of 1,000 Likely GOP Primary Voters was conducted on June 14, 2011 by Rasmussen Reports. Likely GOP Primary Voters include both Republicans and unaffiliated voters likely to vote in a GOP Primary. The margin of sampling error is +/- 3 percentage points with a 95% level of confidence. Field work for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology.