Republican presidential nominee Mitt Romney, right, and President Barack Obama shake hands with audience members following the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)

Photo by: Eric Gay

Republican presidential nominee Mitt Romney, right, and President Barack Obama shake hands with audience members following the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)