Article Photos: Re-elected, Obama heads back to divided government 15/16

  President Barack Obama, first lady Michelle Obama and their daughters Sasha, front 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)