Why is Rudy Giuliani being Sued by former Assistant Noelle Dunphy for Sexual Assault?

Donald Trump's former lawyer Rudy Giuliani is being sued for sexual assault by a former employee, Noelle Dunphy. The $10 Million Civil suit, filed on Monday, May 15, in the New York Supreme Court, alleges Sexual assault, Selling pardons, and non-payment of wages. 

Yes, Selling Pardons. And Dunphy says she has tape recordings. I link to a copy of the lawsuit on gloriamoraga.com. 

Please don't read it if you are triggered by descriptions of sexual abuse.