Only because relevant information was purposely not given to those charged with voting to go to war.
Interesting. What "relevant information" would that be? And how did the Big Bad Bush contrive to keep it out of the hands of the Democrats? Does this mean that Clinton was a liar, too, when he accused Hussein of harboring WMDs and terrorists and launched a bombing raid?
Oh, and what is your source for this amusing allegation? Daily Kos?