
Photos: 100 moments from Obama's presidency
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Chuck Kennedy/Getty Images
Barack Obama is sworn in as the 44th President of the United States on January 20, 2009. Click through the gallery to see 100 moments from his administration.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The Obamas share a moment on a freight elevator as they head to one of the inaugural balls on January 20, 2009. "It was quite chilly, so the President removed his tuxedo jacket and put it over the shoulders of his wife," White House photographer Pete Souza said. "Then they had a semi-private moment as staff members and Secret Service agents tried not to look."

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama wears 3-D glasses during a Super Bowl viewing at the White House on February 1, 2009.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama speaks with aides in the White House Oval Office on February 4, 2009. From left are Senior Advisor Pete Rouse, White House Director of Legislative Affairs Phil Schiliro, Senior Advisor David Axelrod, National Economic Council Director Lawrence Summers and White House Chief of Staff Rahm Emanuel.

Photos: 100 moments from Obama's presidency
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Darin McGregor/AP
Vice President Joe Biden watches Obama sign the economic stimulus bill on February 17, 2009. The goal was to stimulate the country's staggering economy by increasing federal spending and cutting taxes.

Photos: 100 moments from Obama's presidency
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Pablo Martinez Monsivais/AP
Obama acknowledges applause before addressing a joint session of Congress for the first time on February 24, 2009. The President focused on the three priorities of the budget he presented to Congress later in the week: energy, health care and education.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
A boy touches Obama's hair in the Oval Office on May 8, 2009. "A temporary White House staffer, Carlton Philadelphia, brought his family to the Oval Office for a farewell photo with President Obama," White House photographer Pete Souza said. "Carlton's son softly told the President he had just gotten a haircut like President Obama, and asked if he could feel the President's head to see if it felt the same as his."

Photos: 100 moments from Obama's presidency
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Joshua Roberts/Bloomberg/Getty Images
Obama kisses Sonia Sotomayor after announcing her as a Supreme Court nominee on Tuesday, May 26. Sotomayor went on to become the court's first Hispanic justice.

Photos: 100 moments from Obama's presidency
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Chuck Kennedy/The White House
The President returns to the Oval Office after going on a hamburger run for West Wing staffers and aides on May 29, 2009.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House/Getty Images
Obama closes his eyes before taping his weekly radio address at the White House on June 2, 2009.

Photos: 100 moments from Obama's presidency
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Stephen Crowley/The New York Times/Redux
Obama tours the Great Pyramid and Sphinx in Giza, Egypt, on June 4, 2009. In a speech at Cairo University, Obama pledged to "seek a new beginning between the United States and Muslims around the world," imploring America and the Islamic world to drop their suspicions of one another and forge new alliances.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama places a flower at the Buchenwald Memorial as he visits the former concentration camp in Germany on June 5, 2009.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House/Getty Images
Sasha Obama hides behind an Oval Office sofa as she sneaks up on her father on August 5, 2009. Sasha was 7 when her father took office. Malia was 10. See more pictures of Malia and Sasha Obama since their father was elected President

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama stands on stage before delivering remarks to service members in Jacksonville, Florida, on October 26, 2009. "Of all the privileges I have as President, I have no greater honor than serving as your commander in chief," Obama said in his speech.

Photos: 100 moments from Obama's presidency
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SAUL LOEB/AFP/Getty Images
Obama salutes during the dignified transfer of Army Sgt. Dale R. Griffin on October 29, 2009. The President traveled to an Air Force base in Dover, Delaware, to meet a plane carrying the bodies of 18 Americans killed in Afghanistan.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The President fist-bumps custodian Lawrence Lipscomb in the Eisenhower Executive Office Building on December 3, 2009.

Photos: 100 moments from Obama's presidency
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OLIVIER MORIN/AFP/Getty Images
Obama poses with a diploma and gold medal after accepting the Nobel Peace Prize in Oslo, Norway, on December 10, 2009. The Norwegian Nobel Committee said it honored Obama for his "extraordinary efforts to strengthen international diplomacy and cooperation between peoples." Obama was the fourth U.S. President to win the Nobel Peace Prize. Theodore Roosevelt, Woodrow Wilson and Jimmy Carter also received the award.

Photos: 100 moments from Obama's presidency
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Charles Dharapak/AP
The President talks on a cell phone as he steps off Marine One in Baltimore on January 29, 2010.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama plays with his daughters in the White House Rose Garden during a snowstorm on February 6, 2010.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama calls a member of Congress to discuss health care reform on March 19, 2010. A bill passed the Senate in December 2009, but there were intense negotiations before it could pass the House. The bill passed 219-212 after more than a year of bitter partisan debate. All 178 Republicans opposed it, along with 34 Democrats.

Photos: 100 moments from Obama's presidency
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Doug Mills/The New York Times/Redux
Obama signs the Affordable Care Act -- his health care overhaul -- on March 23, 2010. It was the biggest expansion of health care guarantees in more than four decades, and it represented a significant step toward the goal of universal coverage, which has been sought by every Democratic President since Harry Truman.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama takes the stage on a rainy day outside of Chicago on May 31, 2010. He was scheduled to give a Memorial Day speech. "When the lightning began, the Secret Service told the President that it was too dangerous to proceed," White House photographer Pete Souza said. "He took the stage by himself and informed the audience that his speech was canceled and that for everyone's safety, they should return to their buses. Later, he boarded a few of the buses to thank them for attending and apologized for not being able to speak."

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama takes questions at the G-20 Summit in Toronto on June 27, 2010. "We came to Toronto with three specific goals: to make sure the global (economic) recovery is strong and durable; to continue reforming the financial system; and to address the range of global issues that affect our prosperity and security. And we made progress in each of these areas," Obama said.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The President puts his toe on a scale as White House travel director Marvin Nicholson tries to weigh himself in Austin, Texas, on August 8, 2010.

Photos: 100 moments from Obama's presidency
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Charles Dharapak/AP
Obama hosted a working dinner with Mideast leaders on September 1, 2010. With Obama, from left, are Egyptian President Hosni Mubarak, Israeli Prime Minister Benjamin Netanyahu, Palestinian Authority President Mahmoud Abbas and Jordan's King Abdullah II. Obama said he was "cautiously hopeful" that talks could achieve a two-state solution to the long-running Mideast conflict.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama shoots baskets before speaking at Cleveland State University on October 31, 2010.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The President greets U.S. troops after an unannounced flight to Afghanistan on December 3, 2010. The U.S. combat mission ended in Afghanistan in December 2014, but American troops remain in the country to support Afghan forces and counterterrorism operations.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama prays in the Oval Office with co-chairs of the National Prayer Breakfast on January 27, 2011. From left are U.S. Rep. Heath Shuler, U.S. Rep. Tom Coburn, U.S. Rep. Jeff Miller, Obama, former Arizona Rep. Ann Kirkpatrick and U.S. Sen. Mark Pryor.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The first family tours the Christ the Redeemer statue in Rio de Janeiro on March 19, 2011. Obama visited Brazil, Chile and El Salvador during his trip to Latin America.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama talks with Vice President Joe Biden after a teleconference call about Libya on April 5, 2011. Obama committed U.S. forces to the U.N.-authorized mission in Libya, and he told the American people there were strategic and moral reasons to act. Failure to do so, he said, would have allowed Libyan leader Moammar Gadhafi to unleash his military on his own people.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama and members of his national security team monitor the mission against Osama bin Laden on May 1, 2011. "Fourteen people crammed into the room, the President sitting in a folding chair on the corner of the table's head," said CNN's Peter Bergen as he relived the bin Laden raid five years later. "They sat in this room until the SEALs returned to Afghanistan." (Editor's note: The classified document in front of Hillary Clinton was obscured by the White House.)

Photos: 100 moments from Obama's presidency
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Irish Government/Pool/Getty Images
Obama and the first lady enjoy a glass of Guinness as they visit his ancestral home of Moneygall, Ireland, on May 23, 2011. Moneygall is believed to be the birthplace of one of his great-great-great grandfathers.

Photos: 100 moments from Obama's presidency
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JEWEL SAMAD/AFP/Getty Images
Obama and British Prime Minister David Cameron play table tennis with students in London on May 24, 2011.

Photos: 100 moments from Obama's presidency
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Allpix/Splash News/Newscom
During his state visit to England, Obama was also able to meet with Queen Elizabeth II and Prince Philip. The first couple gave the queen a handmade leather-bound album with rare memorabilia and photographs that highlighted the visit by her parents -- King George VI and Queen Elizabeth -- to the United States in 1939. To Prince Philip, they gave a custom-made set of pony bits and shanks and a set of horseshoes worn by a recently retired champion carriage horse. The Obamas were given copies of letters in the royal archives from a number of U.S. presidents to Queen Victoria. Michelle Obama also was given an antique broach in the form of roses made of gold and red coral.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama greets Hugh Hills, 85, in front of Hills' tornado-damaged home in Joplin, Missouri, on May 29, 2011. It was the deadliest tornado to hit American soil since the National Weather Service began keeping records in 1950. Nearly 160 people were killed.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama talks backstage with Senior Advisor Valerie Jarrett before a reception in Philadelphia on June 30, 2011.

Photos: 100 moments from Obama's presidency
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Charles Dharapak/AP
Obama shakes the prosthetic hand of Army Sgt. 1st Class Leroy Arthur Petry on July 12, 2011. Petry was at the White House to receive the Medal of Honor. The Army Ranger lost his hand while tossing an enemy grenade away from fellow soldiers in Afghanistan.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama does pushups on the White House basketball court after a member of the Harlem Globetrotters made a shot on April 9, 2012.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
During an event on April 18, 2012, Obama looks out of the famous Rosa Parks bus that was restored by the Henry Ford Museum in Dearborn, Michigan. "I just sat in there for a moment and pondered the courage and tenacity that is part of our very recent history but is also part of that long line of folks who sometimes are nameless, oftentimes didn't make the history books, but who constantly insisted on their dignity, their share of the American dream," the President said.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama congratulates cadets as they receive their diplomas from the U.S. Air Force Academy on May 23, 2012.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The Obamas take in the Chicago skyline on June 15, 2012. The Obamas lived in Chicago before he was President, and they still own a home there.

Photos: 100 moments from Obama's presidency
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Charlie Neibergall/AP
Obama faces off with Mitt Romney at a presidential debate in Hempstead, New York, on October 16, 2012. Obama was re-elected with 332 electoral votes to Romney's 206.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama pretends to be caught in Spider-Man's web as he interacts with Nicholas Tamarin, 3, just outside the Oval Office on October 26, 2012. Nicholas, son of White House aide Nate Tamarin, had been out trick-or-treating. "The President told me that this was his favorite picture of the year when he saw it hanging in the West Wing a couple of weeks later," White House photographer Pete Souza said.

Photos: 100 moments from Obama's presidency
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Pete Souza//The White House
Obama takes the oath of office during his swearing-in ceremony on January 21, 2013. He is the 17th President to win a second term.

Photos: 100 moments from Obama's presidency
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Gerald Herbert/AP
Obama kisses his wife during the inaugural parade in Washington. Sasha, left, takes a photo of her sister, Malia.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
The President takes a tour of the ancient city of Petra during a visit to Jordan on March 23, 2013. He was accompanied by a University of Jordan tourism professor, and all other visitors kept well away -- except for a few stray cats.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama and four former U.S. Presidents attend the dedication of the George W. Bush Presidential Center and Museum on April 25, 2013. From left are Obama, Bush, Bill Clinton, George H.W. Bush and Jimmy Carter.

Photos: 100 moments from Obama's presidency
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Charles Dharapak/AP
Obama looks to see if it's still raining at a White House news conference on May 16, 2013.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama takes a photo with a sleeping boy at the White House during a Father's Day ice cream social on June 14, 2013.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
Obama and the first lady tour an old slave house on Senegal's Goree Island on June 27, 2013. It was part of a three-nation tour in Africa. "For an African-American -- and an African-American President -- to be able to visit this site, I think (it) gives me even greater motivation in terms of the defense of human rights around the world," Obama said.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
Bo, one of the Obamas' dogs, hangs out in the Outer Oval Office as the President begins his day on November 6, 2013. "Each morning, the President always enters through this door rather than the direct outside door to the Oval Office," White House photographer Pete Souza said.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Advisers Ben Rhodes, left, and Tony Blinken show their approval as Obama discusses Iran negotiations with Secretary of State John Kerry on November 23, 2013. Two years later, after arduous talks that spanned 20 months, negotiators reached a landmark deal aimed at reining in Iran's nuclear program. The essential idea behind the deal is that in exchange for limits on its nuclear activities, Iran would get relief from sanctions while being allowed to continue its atomic program for peaceful purposes.

Photos: 100 moments from Obama's presidency
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ROBERTO SCHMIDT/AFP/Getty Images
Obama and British Prime Minister David Cameron pose for a selfie with Danish Prime Minister Helle Thorning-Schmidt during Nelson Mandela's memorial service in Johannesburg on December 10, 2013. Some thought it was tasteless, considering the occasion.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama tosses a football in the Oval Office on January 6, 2014.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
Obama greets locals in Phoenix after touring a model home of a nonprofit's housing development on January 8, 2014.

Photos: 100 moments from Obama's presidency
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Pete Souza/The White House
Obama works on his computer aboard Air Force One on February 19, 2014.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
Aides laugh as the President swats a fly in the Oval Office on May 6, 2014.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
Obama slides across a counter to pose with staff members at a Shake Shack restaurant in Washington on May 16, 2014. Vice President Joe Biden, lower right, also did the same. "The President normally does a group photo with restaurant staff when he stops for lunch or dinner," White House Photographer Pete Souza said.

Photos: 100 moments from Obama's presidency
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Jacquelyn Martin/AP
Obama, center, walks with the parents of Army Sgt. Bowe Bergdahl after making a statement about Bergdahl's release on May 31, 2014. Bergdahl had been held captive in Afghanistan for nearly five years, and the Taliban released him in exchange for five U.S.-held prisoners.

Photos: 100 moments from Obama's presidency
PHOTO:
Pete Souza/The White House
The President sits for a 3-D-printed bust being produced by the Smithsonian Institution on June 9, 2014. See the final product from the White House Maker Faire, which highlighted the importance of 3-D printing and other technologies that help people design and build new things.

Photos: 100 moments from Obama's presidency
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Jacquelyn Martin/AP
Obama tries out a driving simulator July 15, 2014, as he tours the Turner-Fairbank Highway Research Center in McLean, Virginia. The simulator was meant to demonstrate the types of "smart" vehicles being developed at the center.

Photos: 100 moments from Obama's presidency
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Doug Mills/The New York Times/Redux
The President delivers a statement on the unrest in Ferguson, Missouri, on August 18, 2014. The St. Louis suburb was in turmoil after Darren Wilson, a white police officer, fatally shot Michael Brown, an unarmed black teenager. "Ours is a nation of laws: of citizens who live under them and for the citizens who enforce them," Obama said. "So, to a community in Ferguson that is rightly hurting and looking for answers, let me call once again for us to seek some understanding rather than simply holler at each other. Let's seek to heal rather than to wound each other."