The poll showed 25% of likely caucusgoers support Ms. Bachmann while 21% favor Mr. Romney. The survey of 500 likely caucusgoers has an error margin of 4.4 percentage points, and was conducted by the Republican polling firm Voter/Consumer Research between June 26 and June 30 — just as Ms. Bachmann formally announced her entry into the presidential race in Waterloo, Iowa, where she was born. A Des Moines Register Iowa poll conducted a few days earlier showed and released last month showed the two statistically tied.
Bachmann Tops Romney in Iowa GOP poll
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