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UNITED STATES - AUGUST 13:  Republican presidential candidate Herman Cain, left, and former Arkansas governor Mike Huckabee perform a gospel song for supporters in Cain's tent at the Ames Straw Poll at the Iowa State University in Ames, Iowa.  (Photo By Tom Williams/Roll Call)

UNITED STATES - AUGUST 13: Republican presidential candidate Herman Cain, left, and former Arkansas governor Mike Huckabee perform a gospel song for supporters in Cain's tent at the Ames Straw Poll at the Iowa State University in Ames, Iowa. (Photo By Tom Williams/Roll Call)

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