President Obama and Republican presidential candidate Mitt Romney participate in the second presidential debate, at Hofstra University in Hempstead, N.Y., on Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

President Obama and Republican presidential candidate Mitt Romney participate in the second presidential debate, at Hofstra University in Hempstead, N.Y., on Tuesday, Oct. 16, 2012. (AP Photo/Charles Dharapak)