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 US House Speaker Newt Gingrich and wife Callista wait to be introduced at a meet-and-greet at Al-Jon Manufacturing, a manufacturer of heavy snow removal machinery and recycling machines, in Ottumwa, Iowa, December 20, 2011, in advance of Iowa's first-in-the-nation caucuses, January 3,2012. UPI/Mike Theiler
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