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Republican presidential candidates are pictured during the Iowa GOP/Fox News Debate at the CY Stephens Auditorium in Ames, Iowa, August 11, 2011 (Credit: IowaPolitics.com via Flickr)

Republican presidential candidates are pictured during the Iowa GOP/Fox News Debate at the CY Stephens Auditorium in Ames, Iowa, August 11, 2011 (Credit: IowaPolitics.com via Flickr)