President Obama, first lady Michelle Obama and their daughters Malia (left) and Sasha walk across the South Lawn of the White House on Aug., 26, 2011, after a family vacation on Martha's Vineyard. (Associated Press)
White House deputy press secretary Josh Earnest gives a press briefing at a hotel in Vineyard Haven, Mass., on the island of Martha's Vineyard, on Wednesday, Aug. 24, 2011. (AP Photo/Steven Senne)
President Obama receives a briefing on Aug. 19, 2011, from Homeland Security and Counterterrorism adviser John Brennan in Martha's Vineyard, Mass. (Courtesy of the White House)
** FILE ** President Barack Obama leaves the Oval Office of the White House in Washington Saturday, Aug. 13, 2011, on his way to play golf at Andrews Air Force Base. (AP Photo/Jacquelyn Martin)
President Obama arrives at the White House on Aug. 9, 2011, after making an unannounced trip to Dover Air Force Base, in Dover, Del., to pay tribute to the 30 U.S. troops killed over the weekend in Afghanistan. (Associated Press)
ASSOCIATED PRESS PHOTOGRAPHS
Education Secretary Arne Duncan (right) discusses waivers for No Child Left Behind at the White House on Monday as White House press secretary Jay Carney looks on. The Obama administration has moved forward with a plan to grant waivers to states if they demonstrate reform and maintain high levels of student achievement. Several states will apply for relief.
**FILE** Homeland Security Secretary Janet Napolitano (right) is greeted by Attorney General Eric Holder during the launching of the Strategy to Combat Transnational Organized Crime on July 25, 2011, at the White House. (Associated Press)
President Barack Obama pauses as he speaks in Rose Garden of the White House in Washington, Tuesday, Aug. 2, 2011, after the Senate passed the debt ceiling legislation. (AP Photo/Carolyn Kaster)