Bush said there was conclusive evidence the WMD were there. Since it's come out that a lot of intelligence sources disagreed with the CIA's conclusion that Iraq had WMD (which, apparently, they themselves have admitted they hastily jumped to), it obviously wasn't conclusive by any means. Ergo, Bush either told a lie or was horrifically misinformed, but in the case of misinformation it would be the best for him to sack those responsible rather than carrying on with his ridiculous policy of "keeping the chain of command intact." The fact that he isn't rectifying the obvious flaws in his current chain of command indicates to me that he has no desire to make things better, ergo he won't be getting my vote.