Bush Sr. couldn't convince the UN to go after Saddam when he took him out of Kuwait.
Clinton couldn't convince Congress to go after Saddam with the help of the Kurds.
Bush Jr. fooled Congress into giving him authority to go after Saddam if "in case" it was needed.
Pretty clever way to do it....
I mean, he never had enough reasonable evidence to go after Saddam. He knew that Congress would never approve a war against Iraq with little or no proof of a national security threat.
So what did Bush do? He went to Congress and said, "Look here fellerz. We have a possible dangerous situation with Iraq. May I ask for your permission to rid Iraq of Saddam if need be? I'll show you evidence that he has WMD's, later....". Congress said, "Ok, you have our permission". Clever Bush could go to war any time now, he already had Congressional approval. But he fucked everyone over because he never had enough evidence suggestin Saddam was a threat. Too late to stop him, a lot of Congress men who gave him permission regretted having done so, but it was too late. Bush went to war anyways....
Smart man....