Why not? Saddam was a "gathering threat", Bush is a "gathering threat", see the pattern here? Bush said there were WMD's, he couldn't prove it, but we went there because he "thought" we would find it, there weren't any, but it was okay. We say Bush lied, we know he did but we can't prove it, but by Bush's logic and new set of rules we should impeach him and liberate the United States and even if it's proven he actually did not technically lie and only was incompetent about Iraq, it's ok, we still did the right thing.
So we can "topple the would-be dictatorship" of George W. Bush on the premise he lied about the Iraq war (see
http://pnacinfo.blogspot.com) whether we can prove it or not, see?
On edit: I had more written here but it was all frigged up so I just deleted it