Feb. 23, 2015: "The President's daughter Malia stopped by the Oval Office one afternoon to see her dad and, while they were talking, she wiped something from his face."

April 29, 2015: "An amusing moment as the President made a last minute plea with House Minority Leader Nancy Pelosi, D-Calif., following their meeting at the White House."

May 14, 2015: "The President had hosted a summit meeting at Camp David with the Gulf Cooperation Council. At the conclusion of the summit, each of the leaders was introduced before a final group photo in front of Laurel Cabin. Rather than shoot a tight shot of each leader, I used a wide angle lens to show more of the atmosphere of Camp David. Here, the President greets Sayyid Fahd bin Mahmoud al Said, Deputy Prime Minister for the Council of Ministers' Affairs of the Sultanate of Oman."

June 6, 2015: "The President hugs Vice President Joe Biden after delivering a eulogy during the funeral mass for Beau Biden at St. Anthony of Padua Catholic Church in Wilmington, Del."

July 17, 2015: "The President greets nine-month-old Josephine Gronniger, whose father, Tim Gronniger, brought his family by the Oval Office for a family photo."

Dec. 4, 2015: "The President acquiesced to a selfie with 11-year-old Jacob Haynes and four-year-old James Haynes after taking a family photograph with departing White House staffer Heather Foster."

Dec. 7, 2015: "Comedian Jerry Seinfeld knocks on the Oval Office window to begin a segment for his series, 'Comedians in Cars Getting Coffee.'"

President Barack Obama walks out of Island Snow after paying a visit to get shave ice during a family vacation on Sunday, Dec. 27, 2015, in Kailua, Hawaii.

First lady Michelle Obama listens while President Barack Obama speaks to members of the US Marines on Christmas Day at Marine Corps Base in Kaneohe Bay, Hawaii.

President Obama meets a tiny alligator at the Everglades National Park, Florida, April 22, 2015.

The White House posted this image of President Barack Obama to Twitter on Feb. 12, 2015 with the caption, ""YOLO man!"Find out why President Obama has a selfie stick and #GetCovered by February 15"

U.S. President Barack Obama at the APEC Leaders meeting, Nov. 10, 2014, in Beijing. The APEC Summit hosted 1500 economic leaders in Beijing to deliberate key issues facing the Asia-Pacific economy.

President Barack Obama visits with a departing U.S. Secret Service agent and his wife as their son dives into a couch in the Oval Office, June 23, 2014.

President Barack Obama visits Stonehenge after leaving the NATO summit in Newport, Wales, Sept. 5, 2014.

President Barack Obama talks on the phone with Missouri Gov. Jay Nixon about the situation in Ferguson, Missouri, in Chilmark, Martha's Vineyard, Massachusetts, Aug. 14, 2014.

President Barack Obama talks with National Security Advisor Susan E. Rice following foreign leader phone calls, from Chilmark, Mass. Aug. 11, 2014.

President Barack Obama talks with Vice President Joe Biden in the Oval Office after their lunch together, May 30, 2014.

First Lady Michelle Obama and Sarah Jessica Parker pose for a selfie in the Blue Room prior to the White House Talent Show hosted with the President's Committee on the Arts and the Humanities in the East Room of the White House, May 20, 2014. Kori Schulman, Director of Online Engagement, assists.

President Barack Obama greets children as he walks back to the White House from the Department of Interior in Washington, D.C., May 21, 2014.

First Lady Michelle Obama tours the Brown v. Board of Education National Historic Site in Topeka, Kan., May 16, 2014. Stephanie Kyriazis, Chief of Interpretation and Education, leads the tour.

President Barack Obama holds a bobblehead doll of himself in the Outer Oval Office, May 14, 2014.

President Barack Obama walks through the aisles at Walmart prior to his remarks on energy efficiency in Mountain View, Calif., May 9, 2014.

President Barack Obama visits with Steven Spielberg and his father Arnold Spielberg in Los Angeles, May 7, 2014.

President Barack Obama walks with U.S. Secret Service agents to Air Force One at Los Angeles International Airport in Los Angeles, May 8, 2014.

President Barack Obama and Chancellor Angela Merkel of Germany tour the White House Kitchen Garden on the South Lawn with Executive Chef Cris Comerford, May 2, 2014.

President Barack Obama kisses First Lady Michelle Obama during her remarks at an Affordable Care Act reception in the East Room of the White House, May 1, 2014.

President Barack Obama eavesdrops as Aidan Lamothe, the 2014 March of Dimes Ambassador, whispers to his mother that he had wished to see both the President and Bo, the Obama family dog, during his visit in the Oval Office, May 1, 2014.

President Barack Obama meets with former President Bill Clinton in the Oval Office, May 1, 2014.

President Barack Obama and First Lady Michelle Obama walk with their daughters Sasha and Malia, right, to attend an Easter service at St. John's Church in Washington, D.C., Sunday, March 31, 2013.

President Barack Obama views the area near the Treasury during a walking tour of the ancient city of Petra in Jordan, March 23, 2013.

President Barack Obama throws a football with Chief of Staff Denis McDonough on the Colonnade of the White House, March 15, 2013.

"The President reacts as John Brennan briefs him on the details of the shootings at Sandy Hook Elementary School in Newtown, Conn. The President later said during a TV interview that this was the worst day of his Presidency.", Dec. 14, 2012.

President Barack Obama jokingly mimics U.S. Olympic gymnast McKayla Maroney's "not impressed" look while greeting members of the 2012 U.S. Olympic gymnastics teams in the Oval Office, Nov. 15, 2012. Steve Penny, USA Gymnastics President, and Savannah Vinsant laugh at left.

President Barack Obama receives an update on the ongoing response to Hurricane Sandy at the National Response Coordination Center at FEMA headquarters in Washington, D.C., Oct. 28, 2012. Seated with the President are FEMA Deputy Administrator Richard Serino, left, and FEMA Administrator Craig Fugate.

President Barack Obama hugs Donna Vanzant, the owner of North Point Marina, as he tours damage from Hurricane Sandy in Brigantine, N.J., Oct. 31, 2012.

President Barack Obama and Secretary of State Hillary Rodham Clinton are photographed with Aung San Suu Kyi and her staff at her residence in Rangoon, Burma, Nov. 19, 2012.

President Barack Obama pretends to be caught in Spider-Man's web as he greets the son of a White House staffer in the Outer Oval Office, Oct. 26, 2012.

Sept. 6, 2012: While the President was waiting anxiously backstage before his speech at the Democratic National Convention in Charlotte, N.C., daughters Malia and Sasha came in to wish him well.

President Barack Obama talks on the phone with Aurora Mayor Steve Hogan during the motorcade ride to Palm Beach International Airport in Palm Beach, Fla., July 20, 2012. The President called Mayor Hogan to offer his condolences and support to the Aurora community.

July 16, 2012: The President and First Lady were attending the game between the U.S. Men's Olympic basketball and Brazil in Washington, D.C. During the second half, the jumbotron flashed the President and First Lady on their 'Kiss Cam', the President leaned over to kiss the First Lady amongst audience cheers as Malia and the Vice President watched overhead on the jumbotron.

July 14, 2012: The President delivers remarks in the pouring rain at a campaign event in Glen Allen, Va. He was supposed to do a series of press interviews inside before his speech, but since people had been waiting for hours in the rain he did his remarks as soon as he arrived onsite.

July 5, 2012: "Anyone want to try a piece of my strawberry pie," the President asked those at adjacent tables during a stop for lunch at Kozy Corners restaurant in Oak Harbor, Ohio. A young boy said yes and came over for a big bite of pie.

June 18, 2012: The First Lady reacts as she watches Laura Jarrett and Tony Balkissoon take their vows during their wedding at Valerie Jarrett's home in Chicago.

President Barack Obama and First Lady Michelle Obama wave goodbye to President Shimon Peres of Israel on the North Portico of the White House following the Presidential Medal of Freedom ceremony and dinner in his honor, June 13, 2012.

June 14, 2012: We made an OTR (off-the-record, surprise stop) at the Boys and Girls Clubs of Cleveland after a campaign event, and the President sat and talked to a young woman before shooting hoops with another group of kids.

May 19, 2012: Following the conclusion of the G8 Summit, the President plays a game of pool in the Holly Cabin at Camp David.

May 11, 2012: Lawrence Jackson made this great photograph of the First Lady touching the Hokie Stone before walking onto the field at Lane Stadium to give the Virginia Tech commencement address in Blacksburg, Va.

May 1, 2012: For the President, this was one of the most poignant moments of the his first term. He was visiting wounded warriors in the intensive care unit at Bagram Air Field in Afghanistan. The Purple Heart was presented to Sgt. Chase Haag, who had been injured by an IED. With eyes still closed, Haag reached his hand out to shake hands with the President.

April 18, 2012: We were doing an event at the Henry Ford Museum in Dearborn, Michigan. Before speaking, the President was looking at some of the automobiles and exhibits adjacent to the event. He sat in one of the seats, looking out the window for a only few seconds, of the famed Rosa Parks bus.

President Barack Obama signs the prosthetic arm of Sgt. Carlos Evans, USMC, after greeting wounded warriors in the East Room during their tour of the White House, March 6, 2012. First Lady Michelle Obama first met Evans, who was injured in Afghanistan while on his fourth combat deployment, during a visit to Walter Reed Army Medical Center in 2010.

President Barack Obama talks with Sen. Patrick Leahy, D-Vt., and Marcelle Leahy aboard Air Force One en route to Burlington, Vt., March 30, 2012.

President Barack Obama visits the Dubliner, an Irish pub in Washington, D.C., with his Irish cousin, Henry Healy, center, and Ollie Hayes, a pub owner in Moneygall, Ireland, right, on St. Patrick's Day, March 17, 2012.

Feb. 29, 2012: Sonya Hebert made this amusing photograph of Bo, the Obama family dog, as he was being videotaped for the Easter Egg Roll, in the East Colonnade of the White House.

President Barack Obama signs H.R. 3630 - Middle Class Tax Relief and Job Creation Act of 2012 in the Oval Office, Feb. 22, 2012.

Feb. 21, 2012: Egged on by B.B. King, at right, the President joins in singing 'Sweet Home Chicago' during the 'In Performance at the White House: Red, White and Blues' concert in the East Room.

Jan. 24, 2012: One of the most memorable moments of the year was when the President hugged Rep. Gabrielle Giffords as he walked onto the floor of the House Chamber at the U.S. Capitol to deliver his annual State of the Union address.

Jan. 25, 2012: Chuck Kennedy made this amusing photograph of First Lady Michelle Obama participating in a potato sack race with Jimmy Fallon in the East Room of the White House during a "Late Night with Jimmy Fallon" taping for the second anniversary of the "Let's Move!" initiative.

Jan. 1, 2012: A nice way to celebrate the New Year for the President was to jump in the ocean in his native state of Hawaii. He was on his annual Christmas vacation with family and friends, and went swimming at Pyramid Rock Beach in Kaneohe Bay.

Photographer Pete Souza recalls, "We were on a freight elevator headed to one of the Inaugural Balls. It was quite chilly, so the President removed his tuxedo jacket and put it over the shoulders of his wife. Then they had a semi-private moment as staff member and Secret Service agents tried not to look."

President Barack Obama shakes hands with Speaker of the House John Boehner before delivering the State of the Union address at the U.S. Capitol in Washington, D.C., Jan. 25, 2011.

President Barack Obama and Vice President Joe Biden, along with members of the national security team, receive an update on the mission against Osama bin Laden in the Situation Room of the White House, May 1, 2011.

President Obama and Jay Leno joke backstage before taping "The Tonight Show With Jay Leno" in Burbank, Calif., in this Oct. 25, 2011, file photo.

First lady Michelle Obama waits with Caroline Kennedy Schlossberg in the Green Room of the White House before making talking to the White House Historical Association, Oct. 31, 2011. The White House hosted a reception to honor the association's 50th anniversary.

President Obama tours the Martin Luther King Jr. Memorial in Washington, D.C., in this Oct. 14, 2011 file photo.

Photographer Pete Souza recalls, "After dinner, the President returned to the Oval Office to continue pressing Congressmen to vote for the health care reform bill. In those final days before the vote, the President made hundreds of calls.", March 19, 2010.

President Barack Obama runs down the East Colonnade with family dog "Bo.", at The White House, March 15, 2009.