President Barack Obama, first lady Michelle Obama and their daughters Sasha, left, and Malia, walk from Marine One to board Air Force One at Chicago O'Hare International Airport, Wednes

 

              President Barack Obama, first lady Michelle Obama and their daughters Sasha, left, and Malia, walk from Marine One to board Air Force One at Chicago O
President Barack Obama, first lady Michelle Obama and their daughters Sasha, left, and Malia, walk from Marine One to board Air Force One at Chicago O'Hare International Airport, Wednesday, Nov. 7, 2012, in Chicago, the day after the presidential election. Obama defeated Republican challenger former Massachusetts Gov. Mitt Romney. (AP Photo/Carolyn Kaster)