GWB's credibility, or "Harriet, I do believe he lied."
There are those who insist GWB hasn't lied, and the majority of Americans and virtually the ROW who doubt him are wrong.
One of those folks asked once to have any untruth pointed out. Here is what seems to be an example.
Now I suppose it could be said he didn't know what was going on in his Administration.
Or that he's not responsible for what other people in his Administration do.
Those are standard responses, look at the global warming report from his very own EPA.
Or that it's just "politics".
Arf