Last minute campaigning for Campaign 2012

President Barack Obama lifts a baby as he greets people in the audience after speaking at a campaign event, on Nov. 1, 2012, at the Cheyenne Sports Complex in Las Vegas.

Republican presidential candidate and former Massachusetts Gov. Mitt Romney speaks as he campaigns with Ann Romney and NASCAR legend Richard Petty at Dubuque Regional Airport, in Dubuque, Iowa, on Nov. 3, 2012.

President Barack Obama speaks to supporters during a campaign event at Mentor High School, on Nov. 3, 2012, in Mentor, Ohio. Both Obama and Republican presidential candidate Mitt Romney are amping up efforts to get voters to vote on Nov. 6, especially in key swing states.

President Barack Obama reaches into the audience to greet supporters after at a campaign event at Mentor High School, on Nov. 3, 2012, in Mentor, Ohio.

Republican presidential candidate and former Massachusetts Gov. Mitt Romney and Ann Romney walk from their plane as they arrive to campaign at Dubuque Regional Airport, in Dubuque, Iowa, on Nov. 3, 2012.

Republican presidential candidate and former Massachusetts Gov. Mitt Romney and wife Ann Romney campaign at Portsmouth International Airport, in Newington, N.H., on Nov. 3, 2012.

Republican presidential candidate, former Massachusetts Gov. Mitt Romney pauses as he speaks at a campaign event at Screen Machine Industries, Nov. 2, 2012, in Etna, Ohio. ()

Ann Romney, wife of Republican presidential candidate and former Massachusetts Gov. Mitt Romney, hands out pastry to reporters on the plane after a campaign event at Portsmouth International Airport, in Newington, N.H., on Nov. 3, 2012.

Ann Romney waves after a rally in support of her husband, Republican Presidential candidate Mitt Romney, in Strongsville, Ohio, on Nov. 1, 2012.

First Lady Michelle Obama speaks at a campaign rally, on Nov. 3, 2012, at Miami (Ohio) Unversity in Oxford, Ohio. The First Lady spoke about what's at stake in this election and asked people to help get out the vote.

First lady Michelle Obama gestures as she speaks to supporters at a campaign event at the James L. Knight Center, on Nov. 1, 2012 in Miami.

Vice President Joe Biden speaks during a campaign rally at Arvada West High School, on Nov. 3, 2012, in Arvada, Colo. ()

Vice President Joe Biden meets with customers during a visit to the Red Mug Coffee Shop, on Nov. 2, 2012, in Superior, Wis.

Republican vice presidential candidate, Rep. Paul Ryan, R-Wis., gestures as he speaks during a campaign event, on Nov. 3, 2012 in Marietta, Ohio.

Republican vice presidential candidate, Rep. Paul Ryan, R-Wis., gestures as he speaks during a campaign event, Saturday, Nov. 3, 2012 in Marietta, Ohio.

Republican vice presidential candidate, Rep. Paul Ryan's, R-Wis., son Sam gestures on stage as his wife, Janna Ryan, greets supporters during a campaign event, on Nov. 3, 2012 in Marietta, Ohio.

President Barack Obama gestures as he speaks at a campaign event at the Franklin County Fairgrounds, on Nov. 2, 2012, in Hilliard, Ohio.

Bill Sanders,AP Photo/Asheville Citizen-Times

Dr. Jill Biden, wife of Vice President Joe Biden, waves to supporters at the Asheville Obama campaign office, on Nov. 2, 2012 in Ashville, N.C.

Former President Bill Clinton speaks at a campaign event for Barack Obama at the Coliseum in St. Petersburg, Fla., on Nov. 2. 2012.

Wisconsin Democratic U.S. Senate candidate Tammy Baldwin speaks at a rally for President Barack Obama, on Nov. 3, 2012, in Milwaukee.

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, his wife Ann, (right) along with his running mate Rep. Paul Ryan, R-Wis. (left) and his wife Janna, wave to supporters after Romney spoke at a campaign event at The Square at Union Centre, on Nov. 2, 2012, in West Chester, Ohio.

Republican presidential candidate, former Massachusetts Gov. Mitt Romney embraces Wisconsin Gov. Scott Walker who introduced him at a campaign event at Wisconsin Products Pavilion at State Fair Park, on Nov. 2, 2012, in West Allis, Wis.

Republican presidential candidate and former Massachusetts Gov. Mitt Romney carries one of his grandsons as he steps off his campaign plane at Pease International Airport in Portsmouth, N.H., on Nov. 3, 2012, as they arrive from Cincinnati, Ohio.

President Barack Obama greets supporters on the tarmac upon his arrival at Denver International Airport in Denver, on Nov. 1, 2012.

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