False statement. Bush has said there is no hard evidence linking Saddam with 9-11. There is circumstantial evidence that Saddam knew of the plan and may have provided assistance. The best we have is a Czech intel report of M. Atta, the field commander meeting with Saddams spy chief in Prague several months before 9-11. The CIA has said that they dont consider that evidence enough to prove a link since they have no way of verifying that meeting took place or what may have been discussed.
There is plenty of very hard evidence linking Saddam with Islamic terror groups including UBL and with numerous terror attacks around the world including the 1993 WTC bombing which was most likely funded and supported by Saddam. One of the perps in that attack was actually an Iraqi spook who had Kuwaiti papers forged and placed in the Kuwaiti state records during Saddam's reign of terror there in 1990 to make this guy look to be a native-born Kuwaiti citizen. He was setting up sleepers and false-flag operatives even then.