White House Press Secretary Jay Carney speaks during his daily news briefing at the White House in Washington on May, 20, 2013. (Associated Press)
**FILE** President Obama walks from the Oval Office of the White House in Washington to board Marine One on May 9, 2013. (Associated Press)
** FILE ** President Obama listens to a question about Benghazi during a joint news conference with visiting British Prime Minister David Cameron on May 13, 2013, in the East Room of the White House. (Associated Press)
President Obama speaks on the Internal Revenue Service's targeting of conservative groups for extra tax scrutiny in the East Room of the White House in Washington on Wednesday May 15, 2013. Mr. Obama announced the resignation of Acting IRS Commissioner Steven Miller. (AP Photo/Susan Walsh)
President Obama speaks on the Internal Revenue Service's targeting of conservative groups for extra tax scrutiny in the East Room of the White House in Washington on Wednesday, May 15, 2013. Mr. Obama announced the resignation of Acting IRS Commissioner Steven Miller. (AP Photo/Jacquelyn Martin)
Marines hold umbrellas as President Barack Obama and Turkish Prime Minister Recep Tayyip Erdogan participate in a joint news conference in the Rose Garden of the White House in Washington, Thursday, May 16, 2013. (AP Photo/Charles Dharapak)
President Obama speaks during a news conference with British Prime Minister David Cameron in the East Room of the White House on May 13, 2013. (Associated Press)
** FILE ** In this Jan. 7, 2013, file photo, President Barack Obama shakes hands with Defense Secretary-nominee, former Nebraska Sen. Chuck Hagel, in the East Room of the White House in Washington. (AP Photo/Pablo Martinez Monsivais. File)
Marines hold umbrellas as President Barack Obama and Turkish Prime Minister Recep Tayyip Erdogan participate in a joint news conference in the Rose Garden of the White House in Washington, Thursday, May 16, 2013. (AP Photo/Charles Dharapak)
