Whisky Bar has a Timeline Of WMD Statements

Simply stated, there is no doubt that Saddam Hussein now has weapons of mass destruction.
Dick Cheney
Speech to VFW National Convention
August 26, 2002

Right now, Iraq is expanding and improving facilities that were used for the production of biological weapons.

George W. Bush
Speech to UN General Assembly
September 12, 2002

Continues to the present, I just wish it was more comprehensive and had links.