Supporters listen to Republican Presidential candidate Mitt Romney during a rally at the Veterans Memorial Coliseum in Marion, Ohio, October 28, 2012.
Barack Obama shakes hands with customers at the Common Man restaurant in Merrimack, New Hampshire, October 27, 2012, during an unscheduled campaign stop.
A supporter listens to President Obama at a campaign event at Austin Straubel Airport International Airport in Green Bay, Wisconsin, November 1, 2012.
Obama supporters cheer at Austin Straubel International Airport in Green Bay.
Mitt Romney looks at his iPad on his campaign plane en route to North Canton, Ohio October 26, 2012.
Wearing a mask on Halloween, Carol Heye of Riverview, Florida, shows her support for Mitt Romney as he campaigns in Tampa, Florida.
Mitt Romney greets supporters as he campaigns at Integrity Windows, a window factory in Roanoke, Virginia, November 1, 2012.
Marine One with President Barack Obama and New Jersey Governor Chris Christie on board view the storm damage around Atlantic City, New Jersey, October 31, 2012.
Vice President Joe Biden speaks at a campaign rally at the Municipal Auditorium in Sarasota, Florida, October 31, 2012.
An Obama supporter casts his ballot early at an outdoor ballot box in Denver, Colorado October 30, 2012.
Mitt Romney accepts relief supplies for people affected by Hurricane Sandy at a storm relief campaign event in Kettering, Ohio October 30, 2012.
A sign hangs on the wall at an "Obama for President" office in Denver, Colorado October 30, 2012.
A volunteer speaks on the phone at Ohio's campaign headquarters for Mitt Romney, October 30, 2012.