billmon/whiskey bar points out this choice Gingrich quote from last June:

Despite growing questions about whether the White House exaggerated the evidence about Saddam Hussein's chemical and biological weapons, President Bush and his aides believe that the relief that Americans feel about Mr. Hussein's fall in Iraq will overwhelm any questions about the case the administration's built against him...

"The president is 99 percent safe on this one," said Newt Gingrich, the former speaker of the House.

G.O.P. Dismisses Questions on Banned Arms Proof in Iraq
New York Times
June 17, 2003