Mitt Romney makes a campaign stop in Ames, Iowa

Republican 2012 presidential candidate and former Massachusetts Gov. Mitt Romney reaches out to supporters during a campaign 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