It was an insane goal, that goes against what most see as America's role in the world, and that no one in their right mind would ever campaign on because Americans would never buy it if it was laid out there in an honest way. They wanted to completely re-shape the Middle East, using the American military; it was a total flight of fancy, and they found the perfect patsy for their idealistic vision in Bush.
Wolfowicz himself admitted that they all agreed WMD's would be the best selling point, so that's what they "chose." Bush played right along - cherrypicking intel, exaggerating threats, fixing the intel around the policy & misleading Americans every step of the way.
The whole thing is criminal. I hope history gives this period of time in America its proper due...