During the annual Radio and Television Correspondents Dinner this week, Bush presented a slide show of quirky photographs from inside the White House. In one, the president is looking under furniture in the Oval Office.
"Those weapons of mass destruction have got to be somewhere," Bush joked. "Nope, no weapons over there ... maybe under here?"
Democrats have seized on the matter, calling it astonishingly insensitive when Americans have died for their country in Iraq while the search for WMD has turned up nothing.
The administration had cited the threat posed by Saddam Hussein's alleged weapons program as one of the primary reasons for the need for war.