Michele Bachmann and Ron Paul neck and neck in Iowa's straw poll

AMES, Iowa (Reuters) - Michele Bachmann narrowly won the Iowa straw poll of Republicans on Saturday in the first big test of the 2012 presidential campaign, as Texas Governor Rick Perry formally launched a White House bid that could reshape the race.

Bachmann, a representative from Minnesota, edged out Ron Paul, another representative, and rolled over the rest of the Republican field to capture the nonbinding Iowa mock election, a traditional early gauge of organizational strength in the state that holds the first 2012 nominating contest.

Bachmann won 4,823 votes to Ron Paul's 4,671.