If the support of Saddam was done officially, then voting was done and plans and decisions were known.
We are talking the difference here being a few politicians acting on their own and sneaking monies without approval. And I contented that the monies were taken to support a known enemy of the States since militant Islam had already attack US interests up to this point (students taking embassey, M.E. Bureau for our CIA, 241 US Marines were killed by a homicide boomer in Beirut, etc.)
http://www.freerepublic.com/focus/f-news/1489385/posts
My Enemy's Enemy by George Crile
After I read this, I deduce from it that we were supporting all combatants.