Republican presidential candidate and former House Speaker Newt Gingrich, accompanied by his wife Callista, makes a campaign stop Dec. 27, 2011, at the Dubuque Golf and Country Club in Dubuque, Iowa. (Associated Press)

Photo by: Charles Dharapak

Republican presidential candidate and former House Speaker Newt Gingrich, accompanied by his wife Callista, makes a campaign stop Dec. 27, 2011, at the Dubuque Golf and Country Club in Dubuque, Iowa. (Associated Press)