I can only surmise that, amongst friends - C. would likely admit a passel of errors - excused only er 'normally' by the 20/20 aspect which always does apply. Dunno - but then neither could anyone who isn't a friend; press conferences are hardly conversations..
OTOH, I'd (equally) surmise that, while Dubya may indeed have a few personal ideas - he'd be quite less likely able to articulate those. In both cases: we'll Never 'know'.
Rhodes Scholar (in an antiintellectual country) VS a lesser-Spawn of Prescott Bush dynasty (in an antiintellectual country).
Who ya gonna call, Ghostbusters ??
A.