President Barack Obama, walks with daughters Sasha and Malia, first lady Michelle Obama and mother-in-law Marian Robinson, to St. John's Church Jan. 21, 2013, for a church service during the 57th Presidential Inauguration. (AP Photo/Jacquelyn Martin)
President Barack Obama receives the oath of office from Chief Justice John Roberts as first lady Michelle Obama and his daughters Malia and Sasha listen at the ceremonial swearing-in at the U.S. Capitol Jan. 21, 2013. (AP Photo/Evan Vucci)
© President Barack Obama is officially sworn-in by Chief Justice John Roberts, not pictured, in the Blue Room of the White House Sunday, Jan. 20, 2013, in Washington.
President Barack Obama waves after his speech while Vice President Joe Biden applauds at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Pablo Martinez Monsivais)
Crowds congregate in The National Mall for the ceremonial swearing-in for President Barack Obama at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Susan Walsh)