I'd think the man has more right to be on the Supreme Court than Bush has to be in the White House. And probably a similar level of competence to do the job.
I imagine he'd say that in this context "discuss" means something different from what it means in ordinary speech. For example, giving an official legal opinion. You know, the same kind of juggling with words thta Clinton tried with "sexual relations".
Isn't "liar" just a different way of spelling "lawyer" anyway?