There are many arguments going on now about who knew what and when concerning Iraq and WMD's. Our president claims that the intelligence reports were wrong and that everybody believed that there were weapons of mass destruction in Iraq in 2003. My memory and I have gone back and checked it is that there was never any evidence of weapons of mass destruction.
No evidence? Yes, evidence was asked for on several occasions by the United Nations inspectors of the United States. All the evidence that the United States gave was checked out and refuted. There was evidence that there were once WMD in Iraq pre-1994, but there was no evidence that any survived the United Nations disarmament efforts in the early 1990s. Hans Blix and the United Nations begged for real evidence so that they could find and destroy it if it existed as they had been doing with some of the weapons that were questionable (rockets that flew a few miles past the limit).
The President decided to go to war before the United Nations inspectors were done. I believe that the reason was that had the inspectors found weapons of mass destruction, the weapons would have been destroyed and there would be no reason given to attack Iraq. It was important to attack Iraq before any real evidence of prohibited weapons were found.
Let's not rewrite history. There was no real evidence. The inspectors never finished their inspections due to the war.