During the runup to the two Gulf Wars everyone, whether they were "for" or "against" war with Iraq, took for granted that Iraq had chemical weapons, and perhaps worse. Some opponents of Gulf War I gave this as a reason to oppose invasion. I wonder how many of these people are now crowing that Bush "lied" about WMD's.
www.iraqnow.blogspot.com
Joe Wilson, for one. As late as January, 2003, Wilson was making speeches about Saddam's arsenal of WMD and how he would use them to combat an invasion.
Then, he was hired by the Kerry campaign...and changed his mind.