Republican Presidential Debate Held In Sioux City

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Republican presidential candidates from left, former Pennsylvania... News PhotoDebate,Democracy,Election,Former,Horizontal,Iowa,Massachusetts,Mitt Romney,Pennsylvania,Politics,Presidential Candidate,Republican Party,Rick Perry - Politician,Rick Santorum,Sioux City,Texas,US Republican Party Presidential Candidate,USAPhotographer Collection: Getty Images News 2011 Getty ImagesSIOUX CITY, IA - DECEMBER 15: (AFP OUT) Republican presidential candidates from left, former Pennsylvania Sen. Rick Santorum, Texas Gov. Rick Perry, and former Massachusetts Gov. Mitt Romney, participate debate at the Sioux City Convention Center on December 15, 2011 in Sioux City, Iowa. The GOP contenders are in the final stretch of campaigning in Iowa where the January 3rd caucus is the first test the candidates must face before becoming the Republican presidential nominee. (Photo by Eric Gay-Pool/Getty Images)