President Barack Obama, First Lady Michelle Obama, daughters Malia, left, Sasha, and Astronaut Janet Kavandi walk under the landing gear from beneath the nose of space shuttle Atlantis as they visit Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama, First Lady Michelle Obama, daughters Malia, left, Sasha, and Astronaut Janet Kavandi walk under the landing gear from beneath the nose of space shuttle Atlantis as they visit Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama kisses first lady Michelle Obama while seated in the presidential reviewing stand during the inaugural parade, Monday, Jan. 21, 2013, in Washington. Obama was sworn-in as the nation's 44th President earlier in the day. Photo Credit: (NASA/Bill Ingalls)

Terry White, United Space Alliance project lead for thermal protection systems, left, sakes hands with President Barack Obama after showing his family, Sasha, First Lady Michelle Obama, Malia, and Marian Robinson, how tiles work on the space shuttle during their visit to the Orbital Processing Facility at the NASA Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

First lady Michelle Obama waves as she walks along Pennsylvania Avenue during the inaugural parade, Monday, Jan. 21, 2013, in Washington. Obama was sworn-in as the nation's 44th President earlier in the day. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama, First Lady Michelle Obama, daughters Malia, Sasha, and the First Lady's mother Marian Robinson, are shown the space shuttle Atlantis during a tour of the Orbital Processing Facility by NASA Astronaut Janet Kavandi during their visit to the Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama holds hands with his daughter Malia as they walk under the space shuttle Atlantis with First Lady Michelle Obama, Sasha, and Marian Robinson during a tour they received of the NASA Orbital Processing Facility given by Astronaut, Janet Kavandi, and United Space Alliance project lead for thermal protection systems Terry White, right, at the NASA Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

Terry White, United Space Alliance project lead for thermal protection systems, left, shows President Barack Obama and his family, from left, First Lady Michelle Obama, Malia, Marian Robinson and Sasha, how tiles work on the space shuttle during their visit to the Orbital Processing Facility at the NASA Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

Terry White, United Space Alliance project lead for thermal protection systems, left, shows President Barack Obama and his family, from left, First Lady Michelle Obama, Malia, Marian Robinson and Sasha, how tiles work on the space shuttle during their visit to the Orbital Processing Facility at the NASA Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Looking on is Director of Flight Crew Operations for the Johnson Space Center and Astronaut, Janet Kavandi. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama, First Lady Michelle Obama, daughters Malia, left, Sasha, Marian Robinson, Astronaut Janet Kavandi and United Space Alliance project lead for thermal protection systems Terry White, walk under the landing gear of the space shuttle Atlantis as they visit Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

Terry White, United Space Alliance project lead for thermal protection systems, left, shows President Barack Obama and his family, from left, First Lady Michelle Obama, Malia, Marian Robinson and Sasha, how tiles work on the space shuttle during their visit to the Orbital Processing Facility at the NASA Kennedy Space Center in Cape Canaveral, Fla., Friday, April 29, 2011. Photo Credit: (NASA/Bill Ingalls)

CAPE CANAVERAL, Fla. – (201104290015HQ) Terry White, United Space Alliance project lead for thermal protection systems, left, shows President Barack Obama and his family, from left, First Lady Michelle Obama, Malia, Marian Robinson and Sasha, how tiles work on the space shuttle during their visit to the Orbital Processing Facility at the NASA Kennedy Space Center in Florida.

President Barack Obama and First Lady Michelle Obama meet with STS-134 space shuttle Endeavor commander Mark Kelly, right, and shuttle astronauts, from left, Andrew Feustel, European Space Agency’s Roberto Vittori, Michael Fincke, Gregory H. Johnson, and Greg Chamitoff, after their launch was scrubbed, Friday, April 29, 2011, at Kennedy Space Center in Cape Canaveral, Fla. Photo Credit: (NASA/Bill Ingalls)

President Barack Obama and First Lady Michelle Obama meet with STS-134 space shuttle Endeavor commander Mark Kelly, right, and shuttle astronauts, from left, Andrew Feustel, European Space Agency’s Roberto Vittori, Michael Fincke, Gregory H. Johnson, and Greg Chamitoff, after their launch was scrubbed, Friday, April 29, 2011, at Kennedy Space Center in Cape Canaveral, Fla. Photo Credit: (NASA/Bill Ingalls)

First Lady Michelle Obama and Dr. Jill Biden greet Scott Kelly, First Lady's State of the Union box guest, in the Blue Room of the White House, Jan. 20, 2015. (Official White House Photo by Lawrence Jackson) P012015LJ-0103 This official White House photograph is being made available only for publication by news organizations and/or for personal use printing by the subject(s) of the photograph. The photograph may not be manipulated in any way and may not be used in commercial or political materials, advertisements, emails, products, promotions that in any way suggests approval or endorsement of the President, the First Family, or the White House.