President Barack Obama holds a Cabinet meeting in the Cabinet Room of the White House, July 26, 2012. (Official White House Photo by Pete Souza)

President Barack Obama looks at the Nobel Peace Prize medal for the first time at the Norwegian Nobel Institute in Oslo, Norway. December 10, 2009. (Official White House Photo by Pete Souza)

Jan. 21, 2009 “This was his first morning in the Oval Office as President of the United States. He was reading some briefing material before a meeting.”

Dec. 14, 2011 “During one of the Christmas Holiday receptions at the White House, I noticed the First Lady’s hands resting on the podium as the President made brief remarks.” (Official White House Photo by Pete Souza)

President Barack Obama stands with Vice President Joe Biden in the Green Room of the White House prior to delivering a statement on the economy in the East Room, Nov. 9, 2012. (Official White House Photo by Pete Souza)

President Barack Obama places a wreath at the Tomb of the Unknowns at Arlington National Cemetery in Arlington, Va., in honor of Veterans Day, Nov. 11, 2012. (Official White House Photo by Pete Souza)

President Barack Obama and New Jersey Gov. Chris Christie look at storm damage along the coast of New Jersey on Marine One, Oct. 31, 2012. (Official White House Photo by Pete Souza)

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. (Official White House Photo by Pete Souza)

President Barack Obama hugs Stephanie Davies while visiting shooting victim Allie Young at the University of Colorado Hospital in Aurora, Colo., Sunday, July 22, 2012. Davies helped keep Young alive after her friend was wounded at the movie theater in Aurora. The President traveled to Colorado to visit with patients and family members affected by the shootings. (Official White House Photo by Pete Souza)

President Barack Obama and First Lady Michelle Obama talk in the Green Room of the White House before hosting a Smithsonian Museum of African American History reception in the East Room, Feb. 22, 2012. (Official White House Photo by Pete Souza)

The Obama family made an unannounced visit to tour the Martin Luther King, Jr. National Memorial in Washington, D.C., the night before the President made remarks at the official dedication of the memorial. (Photo by Pete Souza)

Luz Graham-Urquilla, 4, watches President Barack Obama as he signs her drawing at the Resolute Desk in the Oval Office, May 25, 2012. (Official White House Photo by Pete Souza)

President Barack Obama talks with Presidential Medal of Freedom recipient Toni Morrison in the Blue Room of the White House, May 29, 2012. (Official White House Photo by Pete Souza)

President Barack Obama boards Air Force One at Bagram Air Field, Afghanistan, as he departs for Washington, D.C., May 1, 2012. (Official White House Photo by Pete Souza)

June 21, 2011 “Samantha Appleton, who has since left the White House, photographed the First Lady as she met with former President Nelson Mandela of South Africa at Mandela’s home in Houghton, South Africa. (Official White House Photo by Samantha Appleton)

Secretary of State Hillary Rodham Clinton visits with former South African President Nelson Mandela at his home in Qunu, South Africa, Aug. 6, 2012. Mandela has retired to his childhood home in Qunu, his ancestral village. (Official White House Photo by Lawrence Jackson)

President Barack Obama and former First Lady Nancy Reagan walk side-by-side through Center Hall in the White House. To the left of Mrs. Reagan hangs her official White House portrait as First Lady. June 2, 2009. (Official White House Photo by Pete Souza)

President Barack Obama bends over so the son of a White House staff member can pat his head during a family visit to the Oval Office. The youngster wanted to see if the President’s haircut felt like his own. April 8, 2009. (Official White House Photo by Pete Souza)

A little boy leans over to kiss President Barack Obama during the Congressional picnic on the South Lawn of the White House, June 27, 2012 (Official White House Photo by Pete Souza)

President Barack Obama sits on the famed Rosa Parks bus at the Henry Ford Museum following an event in Dearborn, Michigan. April 18, 2012. (Official White House Photo by Pete Souza)

President Barack Obama hugs First Lady Michelle Obama in the Red Room of the White House while Senior Advisor Valerie Jarrett smiles prior to the National Newspaper Publishers Association (NNPA) reception. March 20, 2009. (Official White House Photo by Pete Souza)

First Lady Michelle Obama participates in a prom fashion show segment during a a Joining Forces event at the Jacksonville Naval Air Station in Jacksonville, Fla., April 12, 2012. Some 300 teenage girls from military families attended the event, which featured a surprise appearance by Ellen DeGeneres, gift cards from JC Penney, and a fashion show with Ann Shoket, Editor of Seventeen magazine.(Official White House Photo by Lawrence Jackson)

Audience members photograph during a Joining Forces event with First Lady Michelle Obama at the Jacksonville Naval Air Station in Jacksonville, Fla., April 12, 2012. (Official White House Photo by Lawrence Jackson)

July 15, 2011 “One of the most poignant days of the year was when Ruby Bridges visited the White House. Ruby is the girl portrayed in Norman Rockwell’s famous painting, “The Problem We All Live With,” which depicts Ruby as she is escorted to school on the court-ordered first day of integrated schools in New Orleans in 1960. When the Norman Rockwell Museum loaned the painting to the White House for a short period of time, the President invited Ruby to view the painting while it was on display outside the Oval Office.” (Official White House Photo by Pete Souza)

Sept. 21, 2011 “The First Lady reacts to something the President whispered to her at the Waldorf Astoria Hotel in between events related to the United Nations General Assembly in New York City.” (Official White House Photo by Pete Souza)

Nov. 21, 2011 “The President reacts jokingly after the First Lady in her remarks called Jill Biden, ‘my favorite person here,’ despite the fact that her husband was standing next to her. All in good fun, the President then spoke at the signing ceremony for the Veterans Opportunity to Work to Hire Heroes Act of 2011 in the Eisenhower Executive Office Building.” (Official White House Photo by Pete Souza)

President Barack Obama and First Lady Michelle Obama arrive on the South Lawn of the White House following their trip to Fort Bragg, N.C., Dec. 14, 2011. (Official White House Photo by Chuck Kennedy)

President Barack Obama and First Lady Michelle Obama share a private moment in a freight elevator at an Inaugural Ball in Washington, D.C. January 20, 2009. (Official White House Photo by Pete Souza)

Dec. 15, 2011 “Interrupting a Christmas Holiday photo line, the President confers with Rob Nabors, Assistant to the President for Legislative Affairs, about the latest developments in the payroll tax cut extension as the First Lady waits in the background.” (Official White House Photo by Pete Souza)

President Barack Obama congratulates Google Science Fair winners, from left, Naomi Shah, Shree Bose, and Lauren Hodge in the Oval Office, Oct. 3, 2011. (Official White House Photo by Pete Souza)

President Barack Obama talks with Anand Srinivasan, 15, in the Blue Room, Feb. 7, 2012, during the second annual White House Science Fair celebrating student winners of science, technology, engineering, and math (STEM) competitions from across the country. Srinivasan, a sophomore from Roswell High School in Roswell, Ga., was a finalist in the Google Science Fair for his project, which examines the use of electroencephalography (EEG) and prosthetic technology to make a more functional artificial limb. (Official White House Photo by Pete Souza)

Oct. 10, 2011 “Nicky DeParle, son of Deputy Chief of Staff Nancy-Ann DeParle, was in the White House to visit his mother one afternoon on a school holiday. The President took a break between meetings to have a power bar with Nicky and check on how he was doing.” (Official White House Photo by Pete Souza)

Sept. 11, 2011 “The President greets a woman following a ceremony to commemorate the tenth anniversary of 9/11 at the Flight 93 National Memorial in Shanksville, Pa. The President and First Lady greeted virtually every family member that attended the ceremony.” (Official White House Photo by Pete Souza)

Aug. 9, 2011 “The President, in the process of saluting, participates in a ceremony at Dover Air Force Base for the dignified transfer of U.S. and Afghan personnel who died in Afghanistan a few days earlier. Many family members and friends of the special forces who died in this incident requested a copy of the photograph and later wrote me how much it meant to them.” (Official White House Photo by Pete Souza)

Sept. 10, 2011 “The President hugs a woman during a visit with the First Lady to Section 60 of Arlington National Cemetery in Arlington, Va. Section 60 is reserved for military personnel who have lost their lives while fighting in Afghanistan and Iraq.” (Official White House Photo by Pete Souza)

President Barack Obama holds a town hall meeting at the Seed Savers Exchange in Decorah, Iowa, on the first day of a three-day bus tour in the Midwest, Aug. 15, 2011. (Official White House Photo by Pete Souza)

President Barack Obama greets children from the Valleyland Kids summer program outside a school in Chatfield, Minn., during a stop on his three-day bus tour in the Midwest, Aug. 15, 2011. (Official White House Photo by Pete Souza)

President Barack Obama and daughters Sasha and Malia shop at Kramerbook & Afterwords Cafe in Washington, D.C., Saturday, Nov. 26, 2011. (Official White House Photo by Pete Souza)

Dec. 21, 2011 “The President and Bo, the Obama family dog, ride in the presidential motorcade en route to PetSmart in Alexandria, Va. The President bought Bo some Christmas gifts at the pet store then walked nearby to Best Buy to purchase gifts for his daughters. (Official White House Photo by Pete Souza)

President Barack Obama talks with an employee as he selects a bone for Bo, the Obama family dog, during a stop at a PetSmart store in Alexandria, Va., Dec. 21, 2011. (Official White House Photo by Pete Souza)

Nov. 1, 2011 “Usually the best moments at meetings are before and after the participants actually sit down. In this case, though, there was an interesting juxtaposition of gestures as the President and Vice President met with the House Democratic Leadership in the Oval Office.” (Official White House Photo by Pete Souza)

President Barack Obama delivers the State of the Union address in the House Chamber at the U.S. Capitol in Washington, D.C., Jan. 24, 2012. (Official White House Photo by Chuck Kennedy)

President Barack Obama greets Members of Congress as he arrives in the House Chamber at the U.S. Capitol in Washington, D.C., to deliver the State of the Union address, Jan. 24, 2012. (Official White House Photo by Chuck Kennedy)

May 25, 2011 “The President and First Lady bid farewell to Queen Elizabeth II and Prince Philip, Duke of Edinburgh, before they departed Winfield House in London following a dinner in honor of the Queen.” (Official White House Photo by Pete Souza

President Obama is welcomed to Canada by Governor General Michaelle Jean and a contingent of Royal Canadian Mounted Police. February 19, 2009. (Official White House Photo by Pete Souza)

President Barack Obama talks with President Manmohan Singh of India in between the G20 working dinner and the scheduled entertainment at the Los Cabos Convention Center in Los Cabos, Mexico, June 18, 2012. (Official White House Photo by Pete Souza)

President Barack Obama talks on the phone with a foreign leader in the Oval Office, Nov. 8, 2012. (Official White House Photo by Pete Souza)

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. (Official White House Photo by Pete Souza)

President Barack Obama and President Juan Manuel Santos of Colombia participate in a presentation of land titles to the Afro-Colombian community at the Plaza de San Pedro in Cartagena, Colombia, April 15, 2012. (Official White House Photo by Pete Souza)

President Obama and Prime Minister Harper in the Parliament Library in Ottawa, Canada on Feb. 19, 2009. February 19, 2009. (Official White House Photo by Pete Souza)

President Obama is welcomed by an enthusiastic crowd during his surprise visit to the Byward Market upon his arrival in Ottawa, Canada, February 19, 2009. (Official White House Photo by Pete Souza)

President Barack Obama walks with Prime Minister Stephen Harper of Canada, left, and President Felipe Calderon of Mexico following their joint press conference in the Rose Garden of the White House, April 2, 2012. The three leaders are reflected in the base of flag poles situated on the Colonnade. (Official White House Photo by Chuck Kennedy)

Prime Minister David Cameron of the United Kingdom, President Barack Obama, Chancellor Angela Merkel of Germany, José Manuel Barroso, President of the European Commission, and others watch the overtime shootout of the Chelsea vs. Bayern Munich Champions League final, in the Laurel Cabin conference room during the G8 Summit at Camp David, Md., May 19, 2012. (Official White House Photo by Pete Souza)

President Barack Obama holds Arianna Holmes, 3, before taking a departure photo with members of her family in the Oval Office, Feb. 1, 2012. Arianna’s mother, Angela Holmes, is a departing Special Assistant in the International Economic Affairs office of the National Security Staff. (Official White House Photo by Lawrence Jackson)

June 9, 2011 “The President had attended the fourth grade closing ceremony for his daughter Sasha at her school in Bethesda, Md. As he was departing, he noticed some pre-school children peering out of a window at a child care facility adjacent to the Sasha’s school so he walked over to say hello to them.” (Official White House Photo by Pete Souza)

March 20, 2011 “Despite security concerns, the President decided to walk into the street to wave to people gathered outside the Cidade de Deus favela community center in Rio de Janeiro. As he was walking, a young boy reached out of a closed door and the President reached over to give him a fist bump.” (Official White House Photo by Pete Souza)

July 20, 2011 “The President prays with members of the Circle of Protection Campaign during a drop-by meeting with the faith-based leaders in the Roosevelt Room.” (Official White House Photo by Pete Souza)

President Barack Obama and First Lady Michelle Obama dance with children at the Diwali candle lighting and performance at Holy Name High School in Mumbai, India, Nov. 7, 2010. (Official White House Photo by Pete Souza)

Sam Kass, Senior Policy Advisor for Healthy Food Initiatives, interviews Kids’ State Dinner guest Samuel Hightower, 10, from Maryland, in the Cross Hall of the White House, Aug. 20, 2012. Samuel’s winning recipe was for Sizzling Tofu with Green Onions and Sugar Snap Peas. (Official White House Photo by Sonya N. Hebert)

A booklet of the winning lunch recipes is included as part of the place setting at the Kids’ State Dinner in the East Room of the White House, Aug. 20, 2012. (Official White House Photo by Sonya N. Hebert)

President Barack Obama drops by the Kids’ State Dinner in the East Room of the White House, Aug. 20, 2012. (Official White House Photo by Pete Souza)

President Barack Obama high fives a young boy outside an event in Palm Beach Garden, Fla., April 10, 2012. (Official White House Photo by Pete Souza)

President Barack Obama reacts as children push eggs across the South Lawn during the 2012 White House Easter Egg Roll, April 9, 2012. (Official White House Photo by Pete Souza)

Feb. 5, 2011 “The two coaches for Sasha Obama’s basketball team couldn’t make it to one of her games, so the President and his then personal aide, Reggie Love, filled in as coaches for this game one Saturday. Here they along with Sasha’s teammates react during the game.” (Official White House Photo by Pete Souza)

Eight-month-old Cooper Wagner grabs President Barack Obama’s face while taking a picture with his parents, Captain Greg Wagner and Meredith Wagner, at Marine Corps Base Hawaii in Kaneohe Bay, Hawaii, Sunday, Dec. 25, 2011. The President and First Lady Michelle Obama visited with members of the military and their families during Christmas dinner at Anderson Hall. (Official White House Photo by Pete Souza)

President Barack Obama and former President Bill Clinton listen as Gary Le Francois, Senior Vice President and Director of Engineering, leads them on a tour of the Transwestern Building in Washington, D.C., Dec. 2, 2011. The 240,000 square foot office building is undergoing renovations to the façade and internal systems that are expected to raise their ENERGY STAR rating to 95 (out of 100). (Official White House Photo by Pete Souza)

President Barack Obama talks with Afghan President Hamid Karzai following their bilateral meeting at the Waldorf Astoria Hotel in New York, N.Y., Sept. 20, 2011. (Official White House Photo by Pete Souza)

President Barack Obama participates in a bilateral meeting with Prime Minister Yousaf Raza Gillani of Pakistan during the Nuclear Security Summit at the Coex Center in Seoul, Republic of Korea, March 27, 2012. (Official White House Photo by Pete Souza)

Jan. 8, 2011 “A terrible tragedy occurred on a Saturday in January when a gunman shot Rep. Gabrielle Giffords and 18 others in Tucson, Ariz. A few days later, the President spoke at a memorial service for the six victims who died and those wounded. Here he greets Mavy Stoddard, whose husband Dorwan died while protecting her during the shooting.” (Official White House Photo by Pete Souza)

President Barack Obama and his daughters, Malia, left, and Sasha, watch on television as First Lady Michelle Obama takes the stage to deliver her speech at the Democratic National Convention, in the Treaty Room of the White House, Tuesday night, Sept. 4, 2012. (Official White House Photo by Pete Souza)

President Barack Obama, First Lady Michelle Obama, and daughters Malia, left, and Sasha walk through Lafayette Park from the White House to St. John’s Episcopal Church in Washington, D.C., Aug. 19, 2012. (Official White House Photo by Pete Souza)

President Barack Obama reacts to a photograph during an interview with David Letterman during a taping of the “Late Show with David Letterman” at the Ed Sullivan Theater in New York, N.Y., Sept. 18, 2012. (Official White House Photo by Pete Souza)

President Barack Obama examines the Resolute Desk on March 3, 2009, while visiting with Caroline Kennedy Schlossberg in the Oval Office. In a famous photograph, her brother John F. Kennedy Jr., peeked through the FDR panel, while his father President Kennedy worked. March 3, 2009. (Official White House Photo by Pete Souza)

President Barack Obama talks with paralympic athletes at the U.S. Olympic Training Facility in Colorado Springs, Colo., Aug. 9, 2012. The TV in the background broadcast the gold medal ceremony for the U.S. Olympic women’s soccer team. (Official White House Photo by Pete Souza)

President Barack Obama looks through a telescope during the Astronomy Night event on the South Lawn of the White House. October 7, 2009. (Official White House Photo by Chuck Kennedy)

Another snowstorm blanketed Washington for the second time in a few days. Because it was a Saturday, I hung around the White House thinking that the President might venture out in the snow with his daughters. Here they are playing in the Rose Garden in the midst of the storm. (Official White House Photo by Pete Souza)

“We were walking through a locker room at the University of Texas when White House Trip Director Marvin Nicholson stopped to weigh himself on a scale. Unbeknownst to him, the President was stepping on the back of the scale, as Marvin continued to slide the scale lever. Everyone but Marvin was in on the joke.” (Official White House Photo by Pete Souza)

The President and his daughter Sasha read one of Thomas Jefferson’s speeches at the Jefferson Memorial one Sunday night in Washington, D.C. The entire family toured the Memorial and later the Washington Monument. (Official White House Photo by Pete Souza)

President Barack Obama prepares to sign legislation in the Oval Office, Jan. 3, 2012. Staff Secretary Rajesh De is pictured at left. (Official White House Photo by Pete Souza)

President Barack Obama demos Joey Hudy’s Extreme Marshmallow Cannon at the second White House Science Fair in the State Dining Room of the White House. February 7, 2012. (Official White House Photo by Pete Souza)

The President plays peek-a-boo with the daughter of White House staffer Emmett Beliveau in the Outer Oval Office. (Official White House Photo by Pete Souza)

Nov. 24, 2011 “I photograph a lot of presidential phone calls from the Oval Office. But rarely is the light like this, backlit and reflecting back from a briefing paper. On Thanksgiving Day, the President made phone calls to 10 U.S. military service members — two each from the Army, Air Force, Coast Guard, Marine Corps and Navy — to thank them for their service in Iraq and Afghanistan and wish them a Happy Thanksgiving.” (Official White House Photo by Pete Souza)