Flanked by Chief of Staff Rahm Emanuel, Vice President Biden, DHS Secretary Napolitano and Attorney General Holder, Obama participates in a briefing prior to the closing session of the fiscal responsibility summit. A highlight of the summit, held on February 23, 2009, was former '08 rival and Sen. John McCain's question about cost-saving measures for the Defense Department budget and a suggestion that the president cancel his new helicopter. (Pete Souza/The White House)