Her first story was that she had filed a complaint of the sexual assault at the time.
When Biden said "Sure, let's find that complaint", she suddenly backpedaled to "Well, I didn't actually make such a complaint."
Her original complaint was of unspecified sexual harassment. Only recently did she flip that to a claim of rape. Just a minor difference, eh?
She originally wrote the same thing in her blog, something vague about sexual harassment. Then, very recently, she edited the blog without saying so, revising the story to include rape. That is not the action of an honest person.
Both of the people "backing her up" (they're not witnesses, as they're only repeating heresay) originally only stated that she told them about sexual harassment. Only after coaching by conservative interviewers did they suddenly flip to "Yeah, now I remember how she totally told me about being raped.! Funny how that tiny little detail slipped my mind!".
Damn, they suck at lying.
No prosecutor would touch such a story, given how obvious it is that the accuser is lying.