
President Obama speaks Aug. 6, 2012, in the Oval Office at the White House in Washington after signing the Honoring America's Veterans and Caring for Camp Lejeune Families Act of 2012. (Associated Press)

White House spokesman Jay Carney speaks Aug. 6, 2012, during his daily news conference at the White House in Washington. (Associated Press)

White House spokesman Jay Carney speaks Aug. 6, 2012, during his daily news conference at the White House in Washington. (Associated Press)

White House spokesman Jay Carney speaks Aug. 6, 2012, during his daily news conference at the White House in Washington. (Associated Press)

White House spokesman Jay Carney speaks Aug. 6, 2012, during his daily news conference at the White House in Washington. (Associated Press)

President Obama waves Aug. 5, 2012, as he arrives the White House in Washington from Camp David. (Associated Press)

President Obama waves Aug. 5, 2012, as he arrives the White House in Washington from Camp David. (Associated Press)

** FILE ** South Carolina Gov. Nikki Haley waits for President Obama to speak in the State Dining Room of the White House in Washington on Monday, Feb. 27, 2012. (AP Photo/Susan Walsh, File)

President Obama talks abut taxes, Friday, August 3, 2012, in Eisenhower Executive Office Building on the White House campus in Washington. (AP Photo/J. Scott Applewhite)