
**FILE** In this photo from April 30, 2008, Robert Bauer, President Obama's top lawyer at the White House, is seen in Washington. Bauer is resigning to return to private practice and represent Obama as his personal attorney and as general counsel to Obama's re-election campaign. (Associated Press)

Rep. Paul D. Ryan, House Budget Committee chairman, answers a reporter's question outside the White House in Washington on Wednesday, June 1, 2011, after House Republicans met with President Obama regarding the debt ceiling. Flanking Mr. Ryan are House Majority Leader Eric Cantor (left) and Rep. Jeb Hensarling. (AP Photo/Charles Dharapak)

House Republicans leave the White House via the North Portico on Wednesday, June 1, 2011, after their meeting with President Obama on the debt ceiling. (AP Photo/Charles Dharapak)

** FILE ** In this Sept. 1, 2010, file photo, Egypt's then President Hosni Mubarak listens as Israel's Prime Minister Benjamin Nethanyahu, unseen, speaks in the East Room of the White House in Washington. Egypt's state news agency says former President Hosni Mubarak and his two sons will go on trial on Aug. 3. (AP Photo/Charles Dharapak, File

President Obama (left) and Defense Secretary Robert Gates (center) walk on May 30, 2011, to the Rose Garden at the White House with Army Gen. Martin Dempsey (front to back right), President Obama's nominee for the next Chairman of the Joint Chiefs of Staff; Adm. James Winnefeld, nominee for vice chairman of the Joint Chiefs; and Gen. Ray Odierno, the nominee for Army Chief of Staff. (Associated Press)

President Obama announces his nomination of John E. Bryson (right) to be the next secretary of commerce on Tuesday, May 31, 2011, in the State Dining Room of the White House in Washington. At left is current Commerce Secretary Gary Locke, who has been appointed U.S. ambassador to China. (AP Photo/Charles Dharapak)

Former FEMA director Michael D. Brown has written "Deadly Indifference: The Perfect (Political) Storm: Hurricane Katrina, The Bush White House, and Beyond." (Rowan Littlefield Publishing Group)

President Obama introduces (from third from right) Army Gen. Martin E. Dempsey, the next chairman of the Joint Chiefs of Staff; Adm. James A. Winnefeld, the new vice chairman of the Joint Chiefs; and Gen. Ray Odierno, the next Army chief of staff, during a Rose Garden ceremony at the White House in Washington on Monday, May 30, 2011. Also pictured are (from left) National Security Adviser Tom Donilon and Defense Secretary Robert M. Gates. (AP Photo/Charles Dharapak)

President Obama introduces (from left) Army Gen. Martin E. Dempsey, the next chairman of the Joint Chiefs of Staff; Adm. James A. Winnefeld, the new vice chairman of the Joint Chiefs; and Gen. Ray Odierno, the next Army chief of staff, during a Rose Garden ceremony at the White House in Washington on Monday, May 30, 2011. (AP Photo/Charles Dharapak)