President Barack Obama gestures toward former President George W. Bush, former first lady Laura Bush and first lady Michelle Obama, at the White House in Washington, Thursday, during a ceremony where the Bushs' portraits were unveiled. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Oct. 7, 2001: President George W. Bush poses for a photo in the Treaty Room of the White House after announcing airstrikes on on Afghanistan.

Hillery Smith Garrison/AP hide caption

itoggle caption Hillery Smith Garrison/AP