I never bought for a second that Bush didn't think there were WMD in Iraq.
I honestly think he believed that.
I also don't think he premeditated or intended to lie to the American people about WMD in Iraq. He believed they were there for whatever reason. Whether it be faulty intelligence, listening to the wrong people, or information passed to him from the previous administration... and oh yes,
the previous administration believed that WMD were in Iraq
For him alone to have completely fabricated WMD in Iraq as grounds to go to war, then you would also have to believe that he knew when no WMD were found he would look like the biggest goofball idiot in history. I'm sorry, but nobody, even Bush, is that stupid to intentionally lie and start a war, when you know full well that the eyes of world and the media world will be on the ground and discover the truth.