Is it just me or is Obama unbuttoning his buttons more and more?

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.

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."

Obama wears 3-D glasses during a Super Bowl viewing at the White House on February 1, 2009.

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.

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.

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.

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."

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.

The President returns to the Oval Office after going on a hamburger run for West Wing staffers and aides on May 29, 2009.

Obama closes his eyes before taping his weekly radio address at the White House on June 2, 2009.

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.

Obama places a flower at the Buchenwald Memorial as he visits the former concentration camp in Germany on June 5, 2009.

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

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.

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.

The President fist-bumps custodian Lawrence Lipscomb in the Eisenhower Executive Office Building on December 3, 2009.

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.

The President talks on a cell phone as he steps off Marine One in Baltimore on January 29, 2010.

Obama plays with his daughters in the White House Rose Garden during a snowstorm on February 6, 2010.

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.

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.

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."

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.

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.

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.

Obama shoots baskets before speaking at Cleveland State University on October 31, 2010.

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.

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.

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.

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.

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.)

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.

Obama and British Prime Minister David Cameron play table tennis with students in London on May 24, 2011.

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.

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.

Obama talks backstage with Senior Advisor Valerie Jarrett before a reception in Philadelphia on June 30, 2011.

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.

Obama does pushups on the White House basketball court after a member of the Harlem Globetrotters made a shot on April 9, 2012.