41 of 44: Vice President Joe Biden takes the oath of office during the 57th Presidential Inauguration official swearing-in ceremony at the Naval Observatory on Sunday, January 20, 2013 in Washington. The oath is administered by US Supreme Court Justice Sonia Sotomayor as family members look on. (AP Photo/Saul Loeb, Pool) (AP Photo/ SAUL LOEB)

Share this gallery