I think it's because lying is hard work, and he's trying to hold several different false scenarios in his head while not blurting out what he's really being told behind closed doors.

Bush looks like a person stumbling over the easiest things, but in fact, he's not a person unable to relate simple facts. He's a person trying hard to NOT relate simple facts. He's a person trying to avoid the pitfalls of saying what's on his mind, and trying to keep his stories straight.

As I lawyer, I see people trying to construct false scenarios all the time. But you don't remember lies the way you remember truth. It's easier to remember, e.g., how fast you were driving than it is to remember the exact lie you told the police officer about how fast you were driving. People who lie have to put a lot of energy into keeping their lies consistent with each other and, well, consistent with undeniable facts.

My grand theory is that Bush's entire presidency, from the beginnings of his campaign until now, is based on his taking public stances that at least obscures goals and positions shared secretly. He and his Roves have always accepted that the majority of the country wouldn't want him if they knew the promises he made to the right wing christians and the rich, if they knew the actual effect of his tax cuts, if they knew the evidence behind environmental damage, and on and on. Now, he's hiding the entire foreign policy fiasco(s), who is being held by him incognito, who is being spied upon, what he knew before 9/11, and on and on and on.

If you had so much to hide, you too would only use canned speeches, carefully vetted by speechwriters who don't know the real story anyway, to keep it all straight, and you would stumble and hem and haw in all other circumstances.

Which explains why his problem wasn't so evident as Texas Governor. Bush's brand of crony capitalism and piestic christianism went down well in Austin, at least for a governor with no real constitutional authority: Bush only had to repackage himself for the national race, essentially submerge his real persona and his real ideas and his real goals and pretend to a compassionate, not-asshole conservativism.

You know how they tell you, on a date, just be yourself? And how you think, no, I don't want her to meet that guy just yet? Well, Bush and Rove have been saying that for six years, and Bush has been schizo, trying to send signals and winks and nods to his fundamentalist christians and send money to his corporate sponsors while slinging a load of bull at the nation. Add to that all the bodies he has to keep buried, and you've got a guy who is in a state of flop sweat every time he has to open his mouth in public.

Bush isn't senile, or drug addled. He's a lying asshole. And it's hard work. Only truly gifted and intelligent sociopaths like Rove and Cheney can rattle it off. Bush can't.

