In this day and age, with so many lying SOSs out there, they better have video of it, or it never happened. I had forgotten about Gary Hartpence, but slick Willie certainly is at the top of the list.
At this point I need physical evidence of some kind as well.
Perhaps if there were 10-20 credible witnesses (proven not to be opposition operatives, or people who would be easily bought like junkies or folks with a history of accusing people - Bill Cosby comes to mind. Harvey Weinstein. I believe at least most of his accusers. There are too many and most are very credible).
Other than that I just can’t believe the occasional accusation with no actual proof. It just happens far too often. Even if you get 2-3 accuses I can’t go with it. Even if you are a liberal Dem. It’s just to easy to get people to say anything.
Investigate, sure. If there is evidence, pursue. Otherwise, sorry, they are probably lying.