President Obama takes oath of office

President Barack Obama takes the oath of office as first lady Michelle Obama holds the bible in the Blue Room of the White House on Jan. 20, 2013, in Washington, DC. Obama and Vice President Joe Biden were officially sworn in a day before the ceremonial inaugural swearing-in.

President Barack Obama is sworn in by Chief Justice John Roberts Jr. in the Blue Room of the White House during the 57th Presidential Inauguration on Jan. 20, 2013, in Washington, DC.

President Barack Obama shakes hands U.S. Supreme Court Chief Justice John Roberts after the oath of office as first lady Michelle Obama, daughter Malia and Sasha looks on in the Blue Room of the White House on Jan. 20, 2013, in Washington, DC.

President Barack Obama, left, hugs the first lady Michelle Obama as daughters Malia and Sasha and U.S. Supreme Court Chief Justice John Roberts look on after taking the oath of office in the Blue Room of the White House on Jan. 20, 2013, in Washington, DC.

Vice President Joe Biden stands with U.S. Supreme Court Justice Sonia Sotomayor after taking the oath of office during the official swearing-in ceremony at the Naval Observatory on Jan. 20, 2013, in Washington, DC.

Vice President Joe Biden takes the oath of office from U.S. Supreme Court Justice Sonia Sotomayor as his wife Dr. Jill Biden looks on during the official swearing-in ceremony at the Naval Observatory on Jan. 20, 2013, in Washington, DC.

Vice President Joe Biden places his hand on the Biden Family Bible as he takes the oath of office from U.S. Supreme Court Justice Sonia Sotomayor as his wife Dr. Jill Biden holds the bible during the official swearing-in ceremony at the Naval Observatory on Jan. 20, 2013, in Washington, DC.

Vice President Joe Biden takes the oath of office from U.S. Supreme Court Justice Sonia Sotomayor during the official swearing-in ceremony at the Naval Observatory on Jan. 20, 2013, in Washington, DC.

In this handout from the White House, President Barack Obama and first lady Michelle Obama attend a church service at Metropolitan African Methodist Episcopal Church on Jan. 20, 2013, in Washington, DC.