The primary race in Iowa continues (39 images)

With the first national GOP presidential caucus looming ahead on Jan. 3, 2012, the candidates are hitting the road in Iowa looking to raise their profile, their standing in the polls and their chances of winning the Republican presidential nomination.
Updated: Jan. 3, 2012 at 9:37 AM
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Republican 2012 presidential candidate and former Massachusetts Gov. Mitt Romney and his wife Ann greet supporters as they get off their campaign bus during a stop at Kinzler Companies, a construction services company in Ames, Iowa, December 29, 2011. Polls indicate Romney has a slight lead over opponents Texas Rep. Ron Paul, former Pennsylvania Senator Rick Santorum and former House Speaker Newt Gingrich, in advance of Iowa's first-in-the-nation caucuses, January 3, 2012. UPI/Mike Theiler
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