Bush did act on intelligence that later turned out to be somewhat inaccurate. And he had support of a worldwide coalition that was in agreement with him; regarding that intelligence With a UN mandate to execute that action.
What would you have done if you were in his shoes at that time? Cry me a river for the armchair quarterback here.
I was party to that little Mideast excursion, for 8 months out in the barren Saudia/Iraqi and ultimately the Kuwait desert. I support George H. W. Bush's decisions to this very day.