President Barack Obama sits with Twitter co-founder and Executive Chairman Jack Dorsey during a "Twitter Town Hall" in the East Room of the White House in Washington, Wednesday, July 6, 2011. (AP Photo/Charles Dharapak)
President Obama, flanked by lawmakers and Cabinet members, signs the Wall Street reform and consumer protection bill on July 21, 2010. Now Republican lawmakers are using legislative means to try to weaken it. Their hope is to force some compromises on agency budgets and regulatory nominees. (Associated Press)
President Obama (center) and Adm. Mike Mullen (right), chairman of the Joint Chiefs of Staff, sit with outgoing Defense Secretary Robert M. Gates during a tribute to Mr. Gates on June 30, 2011, at the Pentagon. (Associated Press)
** FILE ** The Obama administration recently decided to release 30 million barrels of oil from the country's emergency reserve as part of a broader international response to lost oil supplies caused by turmoil in the Middle East and North Africa. (AP Photo/J Pat Carter, File)
Former Illinois Gov. Rod Blagojevich speaks to the media at the Federal Courthouse in Chicago on June 27, 2011. Blagojevich has been convicted of 17 of the 20 charges against him, including all 11 charges related to his attempt to sell or trade President Obama's vacated Senate seat. At right is his wife Patti. (Associated Press)
President Obama (seated, second from left), Vice President Joseph R. Biden (far left), Secretary of State Hillary Rodham Clinton (seated, second from right), Defense Secretary Robert M. Gates (seated, far right) and others follow the unfolding mission that resulted in the death of Osama bin Laden.
When gay supporters at a New York fundraiser pressed President Obama on whether he supports same-sex marriage, he said "gay couples deserve the same legal rights as every other couple" but avoided giving a definitive answer.
Spc. Gavin Fruge, 22, of Crowley, La., left, watches a rebroadcast of President Barack Obama's speech on proposed troop withdrawal with fellow soldiers at Kandahar Airfield Thursday, June 23, 2011, in Kandahar, Afghanistan. (AP Photo/David Goldman)