What makes no sense to me is that he adopted three native american children and then proceeded to try to commit genocide and ethnically cleanse the rest of the native americans. I say try to because it was a genocide and did a lot of irreparable damage but it wasn't 100% successful because there are still native Americans today who are fighting back.
Easily one of the most evil US presidents, and that's a pretty high standard because most of them were varying degrees of evil.