President Barack Obama receives the oath of office from Chief Justice John Roberts as first lady Michelle Obamas and his daughters Malia and Sasha look on at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Carolyn Kaster)
Gallery: President Obama's second inauguration
Jan. 21, 2013 @ 02:45 PM
Declaring “our work begins today”, President Barack Obama vowed to “finished what we started” four years ago as hundreds of thousands of inauguration-goers gathered on the historic National Mall in anticipation of his oath-taking for a second term.