U.S. president Barack Obama and his national security team in the White House Situation Room receiving live updates from Operation Neptune Spear, which led to the killing of al-Qaedaleader Osama bin Laden.

Presidents Carter, Clinton, Obama and Bush wait backstage to be introduced during the dedication of the George W. Bush Presidential Library and Museum on the campus of Southern Methodist University in Dallas.

President Barack Obama when he was about to walk out to take the oath of office. Backstage at the U.S. Capitol, he took one last look at his appearance in the mirror.

Real commander chief.

President Barack Obama delivers his first major speech stating a commitment to seek the peace and security of a world without nuclear weapons in front of thousands in Prague, Czech Republic, on April 5, 2009.

During his high school days, Obama was known by the nickname “Barry O’Bomber” due to his impressive jump shot on the basketball court.

Before Obama's political career, Obama worked as a civil rights attorney and taught constitutional law at the University of Chicago Law School.

Today we honor the memory of all those we lost on September 11, 2001. May we never forget their stories – and the bravery of our first responders and troops who sacrificed so much. - Barack Obama Never forget.

President Obama poses for a photo with a young boy who had fallen asleep during the Father's Day ice cream social in the State Dining Room of the White House on June 14, 2013.

President Barack Obama and First Lady Michelle Obama look out at the Chicago, Illinois, skyline.

Obama set the Guinness World Record for the fastest time to reach 1 million followers on Twitter. He achieved this in just under five hours after launching his account @ POTUS.

President Obama talking to the House Speaker, John Boehner after the President participated in a Q&A with the House Republican Conference at the U.S. Capitol.

Obama has a tradition of playing basketball on Election Day. He even played a game in Chicago on the morning of his 2012 re-election, saying it was a superstition after having done the same in 2008.

Obama's Strength and Resilience at Home National Preparedness System Created the National Preparedness System to increase support to local communities, secure critical infrastructure nationwide, and work with private sector partners to prevent, respond, and recover from threats

President Barack Obama greets graduating cadets at the United States Military Academy.

In 2009, Obama held the first-ever online town hall meeting, where he answered questions submitted via the internet.

President Barack Obama plays with 5 month-old Vann Carroll during a visit with wounded warriors and their families who were touring the White House.