Senate Judiciary Committee members, from left, Sen. John Jeff Sessions (R-AL), Sen. John Orrin Hatch (R-UT), ranking member Sen. John Chuck Grassley (R-IA), Chairman Patrick Leahy (D-VT), Sen. John Dianne Feinstein (D-CA), Sen. John Charles Schumer (D-NY) and Sen. John Richard Durbin (D-IL) listen to testimony during a hearing about gun control on Capitol Hill on Jan. 30 in Washington, D.C.

A group of people on the National Mall react as President Barack Obama is ceremonially sworn in for a second term as the 44th President of the United States in Washington, D.C., on Jan. 21.

Quinnette Ellis from Tampa Bay, Fla., stands with flags near the U.S. Capitol building on the National Mall after the Inauguration ceremony on Jan. 21 in Washington, D.C.

People cheer on the National Mall during the ceremonial swearing-in ceremonies on the West front of the U.S. Capitol in Washington, D.C., on Jan. 21.

Spectators react on the National Mall during the 57th inauguration ceremony for President Barack Obama and Vice President Joe Biden on the West front of the U.S. Capitol, in Washington, D.C., on Jan. 21.

Flags fly as the crowd on the National Mall cheers during inauguration ceremonies on Jan. 21.

Gustavo Cinfuentes, left, and Greg Josken listen as President Barack Obama speaks during his public swearing-in ceremony as they stand on the National Mall during the Inauguration ceremony on Jan. 21 in Washington, D.C.

Revelers celebrate in front of the Washington Monument near the U.S. Capitol building on the National Mall while attending the public inauguration ceremony on Jan. 21 in Washington, D.C.

People gather near the U.S. Capitol building on the National Mall while attending the public inauguration ceremony on Jan. 21 in Washington, D.C.

Spectators arrive for the inauguration ceremonies of President Barack Obama in Washington, D.C, on Jan. 21.

U.S. Supreme Court Chief Justice John Roberts administers the oath of office to President Barack Obama as first lady Michelle Obama and daughters Malia and Sasha look on during ceremonies on the West front of the U.S Capitol in Washington, D.C. on Jan. 21.

Vice President Joe Biden is sworn-in as his wife Jill holds the Biden Family Bible during the 57th Presidential Inauguration ceremonial swearing-in at the U.S. Capitol on Jan. 21.

President Barack Obama speaks after taking the oath of office at the U.S. Capitol on Jan. 21 in Washington, D.C.

Former President Bill Clinton and Secretary of State Hillary Clinton arrive for the 57th Presidential Inauguration ceremonial swearing-in at the U.S. Capitol on Jan. 21 in Washington D.C.

U.S. Senator John McCain (R-AZ) gestures to U.S. Rep. Peter King before the presidential inauguration on the West Front of the U.S. Capitol in Washington D.C. on Jan. 21.

Singer Beyoncé and husband Jay Z arrive for the 57th Presidential Inauguration ceremonial swearing-in.

Musicians John Mayer and Katy Perry attend the presidential inauguration on the West Front of the U.S. Capitol.

U.S. Rep. Paul Ryan (R-WI) arrives for the Barack Obama second presidential inauguration on the West Front of the U.S. Capitol on Jan. 21.

Sen. Charles Schumer, D-N.Y., arrives at the U.S. Capitol for the ceremonial swearing-in of President Barack Obama during the 57th Presidential Inauguration in Washington, D.C.

Placemarks are set for the Obama and Biden families before the presidential inauguration on the West Front of the U.S. Capitol on Jan. 21 in Washington, D.C.

Placemarks are set for the Obama and Biden families before the presidential inauguration.

Catering staff arrange seats for an inaugural luncheon in Statuary Hall, which is scheduled after Barack Obama's ceremonial swearing in at the U.S. Capitol on Capitol Hill.

A place card for President Barack Obama is pictured prior to the inaugural luncheon that will follow the Signing ceremony in the Capitol on Jan. 21.

The head table for the Inaugural luncheon, which shall be held after U.S. President Barack Obama ceremonial swearing in at the U.S. Capitol, is photographed at Statuary Hall in Washington, D.C. on Jan. 21.

Spectators are seen before the inauguration of President Barack Obama, in Washington D.C.

Brandon Adamski and Alicia Burke keep warm in a blanket as they and others gather near the U.S. Capitol building on the National Mall for the Inauguration ceremony on Jan. 21, in Washington, D.C.

People stand in the cold as they wait for the start of the presidential inauguration on the West Front of the U.S. Capitol in Washington, D.C.

People gather near the U.S. Capitol on the National Mall for the Inauguration ceremony.

The new official portrait, right, was taken on December 6, 2012. The previous one (left) is from 2009.

George H.W. Bush was inaugurated in 1989, and had picked up a snazzy pair of shades by the time he left office in January of 1993.

Bill Clinton left office with a full head of gray hair eight years after he began.

President George W. Bush had a few more gray hairs by the time he left office compared to when he began his first term.

Pakistani Muslim cleric Muhammad Tahirul Qadri (center) reads from the copy of an agreement at a protest rally in Islamabad on Jan. 17. Ruling party Information Minister Qamar Zaman Kaira (center left) and Law Minister Farooq Naek (center right) look on.

A supporter of Muhammad Tahirul Qadri celebrated after Qadri reached an agreement with Pakistan's coalition government.

Supporters of Muhammad Tahirul Qadri wave flags during celebrations after their leader reached a deal with Pakistan's coalition government on Jan. 17.

Emily Nottingham, center, mother of Gabe Zimmerman, a staff member to former Rep. Gabrielle Giffords' who was killed during the Tucson, Ariz. shootings receives a standing ovation, Jan. 16, 2013, during a hearing before the House Democratic Steering and Policy Committee on Capitol Hill in Washington, DC.