If you ever talk to hardcore Trump supporter and ask them about many of Trump absurd ideas and comment, they will either think Trump is perfectly sane or they will say "He is just joking".

Then I ask, "How do you know when he is joking or not?"

Answer: "Its easy, he is telling the truth when I believe him, otherwise he just joking. Like when he tells people to drink bleach, he is joking, but he is telling the truth when he tells people the world is flat.."