One of the elements of the crime is that the statement be false, and the requirement for malice would require that the defendent knew it to be false. This won’t go anywhere. But if it did, discovery could be entertaining.
In the one clip I’ve seen Rush asks “What do you call a woman that wants to be paid for sex? A slut...right?”
He never says Sandra Fluke is a slut.
Where did Gloria get her law degree?
And where does Miss Allred stand with regard to Maher/Schultz/Louis C.K just to mention a few?