I mean fair to try, but from what I know about defamation, that sounds like an insane uphill battle.
She would have to prove credible and tightly connect damages and I think because of she is a public figure there needs to be malicious intent as well, which just means she said it while knowing it was false. That shit is awful to prove, because you need some evidence that directly prove she said it knowing it was false or with disregard for it’s truthfulness.
I like the idea but my brain says this is dead on arrival.