Moderator Bob Schieffer, center, watches as Republican presidential nominee Mitt Romney, left and President Barack Obama  wave to members of the audience during the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)

Photo by: Eric Gay

Moderator Bob Schieffer, center, watches as Republican presidential nominee Mitt Romney, left and President Barack Obama wave to members of the audience during the third presidential debate at Lynn University, Monday, Oct. 22, 2012, in Boca Raton, Fla. (AP Photo/Eric Gay)