FILE - In this Oct. 16, 2012 file photo, President Barack Obama and Republican presidential candidate, former Massachusetts Gov. Mitt Romney exchange views during the second presidentia

 

              FILE - In this Oct. 16, 2012 file photo, President Barack Obama and Republican presidential candidate, former Massachusetts Gov. Mitt Romney exchange views during the second presidentia
FILE - In this Oct. 16, 2012 file photo, President Barack Obama and Republican presidential candidate, former Massachusetts Gov. Mitt Romney exchange views during the second presidential debate at Hofstra University in Hempstead, N.Y. They interrupt each other, bicker and ignore the moderator. Romney poses his own questions and demands answers. “That’s not true,” Obama huffs over and over. This is presidential conduct? It was squirm-inducing for some viewers. But the candidates have little to lose by cranking up the heat in a tight face, where the focus is on persuading the undecided and firing up their fans. (AP Photo/David Goldman, File)