Politics & My baby

I've had a huge problem when it comes to my relationship with my father. He seems laid back on the surface, he smokes weed and likes to go hiking...but he also has a bad side to him. He goes on racist and hateful rants on Facebook (which I've unfollowed him on) and is in love with Trump currently. While I'm fine with everyone having their own opinions on presidential candidates, I do not enjoy racist rants or hate speech. I just find it totally disgusting and nothing I want to be surrounded by. It honestly makes me sick to my stomach reading the things he posts...it makes me sad that I once looked up to him when I was a child. He lives far away, the last 3 times I've visited he starts trying to argue with me about politics and I just ignore him and walk away. He then threatens to kick me out of his house, screams in my face and ignores me for days. He's now coming to visit very soon to see my daughter who is almost 4 months and I'm scared to death. I told my mom to tell him I don't want to talk about anything political at all, right now I don't like any candidates anyway so there's no point. I also just do not want that negativity to happen around my daughter. I feel like if he was to start arguing with me like normal, I'm just gonna make him leave.

What should I do if that happens? I respect free speech but I can't respect hate speech around my baby. She should be the main focus and not politics...