Isn’t the fact the charges are being made forty years later, with no corroboration, prima facie evidence of malice aforethought? Why else would they be doing it?
Balsey Ford’s lawyer let it slip the purpose for making her charge was to put an asterisk next to his name. In other words, to dirty his reputation.
No, it’s not proof. Proof would be a produced statement admissable in court that says “Let me fabricate a story so as to derail his nomination.”