Former Massachusetts Gov. Mitt Romney (left) and former House Speaker Newt Gingrich talk during a break in the Republican presidential debate on Dec. 10, 2011, in Des Moines, Iowa. (Associated Press)

Photo by: Charlie Neibergall

Former Massachusetts Gov. Mitt Romney (left) and former House Speaker Newt Gingrich talk during a break in the Republican presidential debate on Dec. 10, 2011, in Des Moines, Iowa. (Associated Press)