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.   &#40;AP Photo&#47;Saul Loeb, Pool&#41; <span class=meta>(AP Photo&#47; SAUL LOEB)</span>