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Republican 2012 presidential candidates (L-R) former Pennsylvania Sen. Rick Santorum, Texas Gov. Rick Perry, former Massachusetts Gov. Mitt Romney, former House Speaker Newt Gingrich, Texas Rep. Ron Paul, Minnesota Rep. Michele Bachmann and former Ambassador to China Jon Huntsman gather on stage prior to the start of a GOP debate in Sioux City, Iowa, December 15, 2011, in advance of Iowa's first-in-the-nation caucuses, January 3, 2012. UPI/Mike Theiler
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