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Washington, D.C. — Birds fly over the mall in the early morning in front of the Washington Monument before the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Justin Sullivan/Getty Images)

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Washington, D.C. — People wave American flags as people gather near the U.S. Capitol building on the National Mall for the Inauguration ceremony on Jan. 21, 2013 in Washington, DC. (Joe Raedle/Getty Images)

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Washington, D.C. — President Barack Obama, First Lady Michelle Obama and their daughters Sasha (2nd-R) and Malia arrive at St. John's Church on Jan. 21, 2013 in Washington, DC, hours before Obama participates in a ceremonial swearing in for a second term in office. (NICHOLAS KAMM/AFP/Getty Images)

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Washington, D.C. — People attend the 57th Presidential Inauguration on Jan. 21, 2013. (MLADEN ANTONOV/AFP/Getty Images)

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Washington, D.C. — People attend the 57th Presidential Inauguration on Jan. 21, 2013. (MLADEN ANTONOV/AFP/Getty Images)

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Washington, D.C. — People wave and cheer at a television camera near the U.S. Capitol building on the National Mall before the Inauguration ceremony on Jan. 21, 2013 in Washington, DC. (Mario Tama/Getty Images)

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Washington, D.C. — People walks past a homeless man who did not want to be identified on their way to the National Mall to attend the Inauguration ceremony on Jan. 21, 2013 in Washington, DC. (Mario Tama/Getty Images)

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Washington, D.C. — U.S. President Barack Obama greets Secretary of State Hillary Clinton and former president Bill Clinton during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Win McNamee/Getty Images)

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Washington, D.C. — U.S. Supreme Court Justices (L-R) Anthony Kennedy, Supreme Court Chief Justice John Roberts, Clarence Thomas, Sonia Sotomayor Elena Kegan, Samuel A. Alito, and Stephen G. Breyer attend the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (John Moore/Getty Images)

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Washington, D.C. — U.S. Vice President Joe Biden arrives during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Win McNamee/Getty Images)

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Washington, D.C. — President Barack Obama arrives at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Evan Vucci, Pool)

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Washington, D.C. — U.S. President Barack Obama kisses First lady Michelle Obama during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Rob Carr/Getty Images)

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Washington, D.C. — U.S. Vice President Joe Biden is sworn in by Supreme Court Justice Sonia Sotomayor as wife Dr. Jill Biden and Beau Biden look on during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Mark Wilson/Getty Images)

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Washington, D.C. — President Barack Obama receives the oath of office from Chief Justice John Roberts at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. First Lady Michelle Obama holds the bible as daughters Malia and Sasha watch. (AP Photo/Carolyn Kaster)

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Washington, D.C. — President Barack Obama, left, shakes hands with Chief Justice John Roberts after 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)

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Washington, D.C. — U.S. President Barack Obama speaks after being sworn in during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Justin Sullivan/Getty Images)

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Washington, D.C. — President Barack Obama delivers his Inaugural address at the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/J. Scott Applewhite)

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Washington, D.C. — Beyonce performs the national anthem as U.S. President Barack Obama looks on during the presidential inauguration on the West Front of the U.S. Capitol Jan. 21, 2013 in Washington, DC. (Alex Wong/Getty Images)

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Washington, D.C. — U.S. President Barack Obama gives his inauguration address during the public ceremonial inauguration on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC. (Justin Sullivan/Getty Images)

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Washington, D.C. — People attend the public ceremonial swearing-in ceremony for President Barack Obama as they stand on the National Mall during the Inauguration ceremony on January 21, 2013 in Washington, DC. The President was sworn in for second term. (Joe Raedle/Getty Images)

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Washington, D.C. — People gather on the National Mall during the public ceremonial inauguration of U.S. President Barack Obama on the West Front of the U.S. Capitol January 21, 2013 in Washington, DC. (John Moore/Getty Images)

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Atlanta, GA, USA — Bernice King, center right, and Christine King Farris, center left, the daughter and sister of Dr. Martin Luther King Jr., applaud while watching a broadcast as President Barack Obama is inaugurated following the Dr. Martin Luther King Jr. holiday commemorative service at the Ebenezer Baptist Church in Atlanta Monday, Jan. 21, 2013. (AP Photo/David Goldman)

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Washington, D.C. — President Barack Obama waves as he walks along the presidential inaugural parade route, as it winds through the nation's capital January 21, 2013 in Washington, DC. (Mark Wilson/Getty Images)

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Washington, D.C. — President Barack Obama and first lady Michelle Obama walk along Pennsylvania Avenue during the parade after Obama's second inauguration as the 44th U.S. president on Jan. 21, 2013, in Washington, D.C. (JIM WATSON/AFP/Getty Images)

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Washington, D.C. — Palmview High School Mariachi and Folkloric Group, Texas, dance down Pennsylvania Avenue en route to the White House, Monday, Jan. 21, 2013, in Washington. Thousands marched during the 57th Presidential Inauguration parade after the ceremonial swearing-in of President Barack Obama. (AP Photo/Charlie Neibergall)

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Washington, D.C. — The Fergus Falls High School Marching Band of Minnesota performs during the 57th Presidential Inaugural Parade on Pennsylvania Avenue on Monday, Jan. 21, 2013, in Washington. Thousands marched during the 57th Presidential Inauguration parade after the ceremonial swearing-in of President Barack Obama. (AP Photo/Alex Brandon)

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Washington, D.C. — President Barack Obama and first lady Michelle Obama dance at the Commander-In-Chief's Inaugural Ball on Jan. 21, 2013, in Washington, D.C. Obama was sworn in Monday for his second term. (Getty Images/Joe Raedle)