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 Obama (right) turns to leave after speaking July 31, 2011, at the White House about a deal being reached to raise the debt limit with Vice President Joseph R. Biden Jr. (second from right), and White House communications director Dan Pfeiffer (third from right). (Associated Press)
Texas Gov. Rick Perry's aides have been laying the groundwork for a White House bid, and Mr. Perry has been talking to influential Republicans in early voting states. He is expected to jump in when he announces a decision in the coming weeks. (Associated Press)
Rep. Luis Gutierrez, D-Ill., left, is arrested in front of the White House after performing an act of civil disobedience at a rally in support of the DREAM Act in Washington, Tuesday, July 26, 2011. (AP Photo/Jacquelyn Martin)