
President Barack Obama points to a member of the audience at a town hall style meeting in Rio Rancho, New Mexico, May 14, 2009. (Official White House Photo by Pete Souza)

President Obama takes a down moment in the Oval Office with his feet up. (Credit: Pete Souza)

President Obama takes a down moment in the Oval Office with his feet up. (Credit: Pete Souza)

President Barack Obama points to a member of the audience at a town hall style meeting in Rio Rancho, New Mexico, May 14, 2009. (Official White House Photo by Pete Souza)

President Barack Obama points to a member of the audience at a town hall style meeting in Rio Rancho, New Mexico, May 14, 2009. (Official White House Photo by Pete Souza)

President Barack Obama meets with members of his national security team to discuss developments in the Boston bombings investigation, in the Situation Room of the White House, April 19, 2013. Pictured, from left, are: FBI Director Robert Mueller; Lisa Monaco, Assistant to the President for Homeland Security and Counterterrorism; Attorney General Eric Holder; Deputy National Security Advisor Tony Blinken; and Vice Persident Joe Biden. (Official White House Photo by Pete Souza)

President Obama talks on the phone with FBI Director Robert Mueller following explosions at the Boston Marathon. (Pete Souza/White House photo)

President Obama talks on the phone with FBI Director Robert Mueller following explosions at the Boston Marathon. (Pete Souza/White House photo)

President Obama talks on the phone with FBI Director Robert Mueller following explosions at the Boston Marathon. (Pete Souza/White House photo)