Well I must admit, I appreciate humor in many different political views, cultures, and races, because I believe we are all known for doing things that can be a bit humorous. But, I always try to know the company I am in before I poke fun of anyone. Not everyone appreciates it and I realize sometimes feelings can be hurt.
With that said, I have a cousin who likes to make derogatory comments and then act as if she didn't say anything. I am sure she is trying to be funny, but sometimes they are things beyond characteristics. Well, I have tried to poke back and she doesn't like it, in fact, she is defensive.
I am sure if you opened the floor to conversation and spoke on a political platform, reaching strengths and weakness', she really wouldn't want to go there again.
If you don't like it, you will have to say something, as it doesn't appear she is going to stop.