So in your scenario, what if the accuser is lying to spite the person trying to get the job? is that person just screwed with no way to prove his innocense?
Credible? no one remembers her version, even the ones she claims were there...she is only credible to democrats like yourself...
The two people there who claim not to remember it would be potentially incriminating themselves by saying otherwise.
As for who is more credible, the person making the accusation testified credibly and the person denying it has had several people with direct knowledge of him at that time claim parts of his denials were lies. Which do you find more credible and why?