Rep. Michele Bachmann, shown speaking at a reception by the anti-tax group Iowans for Tax Relief, was once a prosecutor for the IRS. On the campaign trail, she has made that part of her resume a selling point.

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Republican presidential candidate Rep. Michele Bachmann arrives for a rally in Costa Mesa, Calif., on Friday. Chris Carlson/AP hide caption

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Republican presidential candidate Rep. Michele Bachmann (R-MN) and her husband, Marcus, wave to the crowd after she speaks at the Iowa Republican Party's straw poll in Ames, Iowa, on Saturday. Bachmann won the poll with 4,823 votes. Charles Dharapak/AP hide caption

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