(VIDEO AT SOURCE) On Saturday, one-time Republican presidential hopeful Carly Fiorina talked about what it was like running against now-president Donald Trump during the last presidential primary. “You memorably had some unpleasant exchanges with then-candidate Donald Trump,” CNN’s S.E. Cupp asked Fiorina who was there to talk about her new book. “You know he can be nasty. He can be tough. What’s your advice to any of the Democratic candidates — men and women — when it comes to running against him?” “Let me just say in fairness — and yes I did face nastiness from Donald Trump — but...