In this Feb. 9, 2009 file photo, President Barack Obama laughs during his first prime time televised news conference in the East Room of the White House in Washington.
In this Jan. 20, 2009 file photo, Barack Obama with his wife, Michelle, at his side, takes the oath of office to become the 44th president of the United States at the U.S. Capitol in Washington.
In this Jan. 20,2009 file photo, President Barack Obama and first lady Michelle Obama dance at the Midwest Inaugural Ball at the Washington Convention Center in Washington.
In this Jan. 20, 2009, file photo, reviewed by the U.S. Military, U.S. Navy Chief Petty Officer Bill Mesta replaces an official picture of outgoing President George W. Bush with that of newly- sworn-in President Barack Obama, in the lobby of the headquarters of the U.S. Naval Station, in Guantanamo Bay, Cuba.
In this April 4, 2009 file photo, the armored presidential limousine carrying President Barack Obama rides past a Czech police officer armed with a submachine gun enroute from Ruzyne airport to Hilton Hotel in Prague.
In this April 5, 2009, file photo, a woman takes a self portrait of herself with President Barack Obama as he greets the crowd at Hradcany square in Prague.
In this April 5, 2009 file photo, President Barack Obama smiles as many people try to take a snapshot of him with their cameras and mobile phones while he greets the crowd after his speech in front of the Castle in Prague, Czech Republic.
In this Sunday, March 15, 2009 file handout photo provided by the White House, President Barack Obama welcomes the family's new puppy Bo, at the White House. The First Family's new dog is making his official debut Tuesday, April 14, 2009.
This Feb. 22, 2009 file photo shows President Barack Obama joined by first lady Michelle Obama walking toward the East Room of the White House for entertainment following a dinner with the nation's governors in the State Dining Room, in Washington.
In this March 17, 2009 file photo, first lady Michelle Obama visits students with the YouthBuild AmeriCorps community service program who gathered on the National Mall in Washington to celebrate their 30th anniversary by building an affordable, energy-efficient house, in Washington. She is joined at rear by YouthBuild's founder, Dorothy Stoneman. Tens of thousands of Americans, from teenagers to baby boomers, soon will get a fresh chance to lend a helping hand in a time of need after Congress voted Tuesday, March 31, 2009, to expand ways for people to serve the country and each other.
In this March 30, 2009, file photo, President Barack Obama greets Senate Majority Leader Harry Reid of Nev., left, as he arrived to sign the Omnibus Public Lands Management Act of 2009, in the East Room of the White House in Washington. Standing in back are Sen. Ron Wyden, D-Ore., left, and Sen. Robert Bennett, R-Utah, right.
In this March 31, 2009, file photo, a worker checks the quality of commemorative golden commemorative medal picturing U.S. President Barrack Obama at a mint factory in Jablonec, Czech Republic.
In this Jan. 27, 2009, file photo, President Barack Obama approaches the media to make a statement on Capitol Hill in Washington after meeting with lawmakers at the Capitol.
In this April 7, 2009 file photo, President Barack Obama visits the Blue Mosque in Istanbul, Turkey.
In this Feb. 3, 2009, file photo, President Barack Obama, left, and his wife, first lady Michelle Obama, visit second graders at Capital City Public Charter School in Washington.
In this June 11, 2008, file photo, Rachel Lerman wears two bracelets supporting Sen. Barack Obama's candidacy for President, at her home in Washington.
In this April 2, 2009, file photo, President Barack Obama gestures during a press conference at the end of the G20 Summit at the Excel Centre in London.
In this April 14, 2009 file photo, President Barack Obama and first lady Michelle Obama show off their new dog Bo, a 6-month-old Portuguese water dog, with their daughters Malia, center, and Sasha, right, at the White House in Washington.
First lady Michelle Obama holds family dog Bo as President Obama and daughter Malia watch on the South Lawn of the White House in Washington, Tuesday, April 14, 2009.
In this Feb. 5, 2009, file photo, President Barack Obama waves as he walks along the West Wing Colonnade towards the Oval Office in Washington.