Barack Obama, left, with his wife, Michelle, at his side, takes the oath of office to become the 44th president of the United States from Chief Justice John Roberts, on Capitol Hill in Washington on Jan. 20, 2009.
President Barack Obama, accompanied by Vice President Joe Biden and retired military members, gestures in the Oval Office of the White House in Washington on Jan. 22, 2009, where he began overhauling U.S. treatment of terror suspects by signing executive orders and a presidential directive aimed at closing the Guantanamo Bay detention center.
President Barack Obama walks down the Cross Hall of the White House in Washington, to hold his first news conference in the East Room on Feb. 9, 2009.
President Barack Obama and first lady Michelle Obama pose with Britain's Queen Elizabeth II and Prince Philip at Buckingham Palace in London, Wednesday, April 1, 2009.
President Barack Obama gestures while speaking to military personnel at Camp Victory in Baghdad, Iraq, on April 7, 2009.
President Barack Obama is almost jerked off his feet as he shows off the first family's new dog, Bo, Tuesday, April 14, 2009, a 6-month-old Portuguese water dog with his daughters Malia, left, and Sasha Obama, right, on the South Lawn of the White House in Washington, Tuesday, April 14, 2009.
President Barack Obama announces Federal Appeals Court Judge Sonia Sotomayor, right, as his nominee for the Supreme Court, Tuesday, May 26, 2009, in an East Room ceremony at the White House in Washington.
A live TV broadcast showing President Barack Obama delivering his speech at Cairo University, is reflected in the sun glasses of a man at a coffee shop in Riyadh, Saudi Arabia, Thursday, June 4, 2009, as he watches the live TV broadcast. Obama called for a new beginning between the United States and Muslims during his speech delivered at Cairo University in Egypt, which was broadcast live on the internet and TV stations.
President Barack Obama, right, and Vice President Joe Biden, left, have a beer with Harvard scholar Henry Louis Gates Jr., second from left, and Cambridge, Mass., police Sgt. James Crowley in the Rose Garden of the White House in Washington Thursday, July 30, 2009.
President Barack Obama delivers a speech on healthcare to a joint session of Congress, on Capitol Hill in Washington on Sept. 9, 2009. Vice President Joe Biden and House Speaker Nancy Pelosi applaud at rear.
President Barack Obama, center, British Prime Minister Gordon Brown, right and French President Nicolas Sarkozy leave the stage after making a joint statement on Iran's nuclear facility, Friday, Sept. 25, 2009, during the G-20 summit in Pittsburgh.
President Barack Obama speaks during the Chicago 2016 bid presentation at the 121st International Olympic Committee session at the Bella Center in Copenhagen on Oct. 2, 2009. Chicago was eliminated in the first round of deliberations.
President Barack Obama speaks at a memorial services at Fort Hood, Texas, Tuesday, Nov. 10, 2009. In the foreground is a photo of Sgt. Amy S. Krueger.
President Barack Obama pauses during his joint news conference with Japanese Prime Minister Yukio Hatoyama at the prime minister's official residence in Tokyo, Friday, Nov. 13, 2009.
President Barack Obama tours the Great Wall in Badaling, China, Wednesday, Nov. 18, 2009.
President Barack Obama and first lady Michelle Obama are seen before they welcome India's Prime Minister Manmohan Singh and his wife Gursharan Kaur to the State Dinner at the North Portico of the White House in Washington, Tuesday, Nov. 24, 2009.
President and Nobel Peace Prize laureate Barack Obama poses with his medal and diploma at the Nobel Peace Prize ceremony at City Hall in Oslo, Thursday, Dec. 10, 2009.
President Barack Obama speaks at the morning plenary session of the United Nations Climate Change Conference at the Bella Center in Copenhagen, Denmark, Friday, Dec. 18, 2009.
President Barack Obama speaks to the media about the failed Christmas Day terror plot attempt on Northwest Airlines Flight 253 at the Marine Corps Base Hawaii at Kaneohe Bay, Hawaii, Dec. 28, 2009.
President Barack Obama stands with Vice President Joe Biden as he makes a statement about the earthquake in Haiti, Thursday, Jan. 14, 2010, at the White House in Washington.