The only thing I think Trump did wrong.......he shouldn't have gone there in the first place. The UN is a cesspool of third world trash and socialism. They look at this country as their "Bank" and their "police force" if something goes wrong. Talking to them is a total waste of time, because they do not care about doing the right thing. They have no desire whatsoever to stop the Norks, and half the little tinhorn dictators of the countries that make up the UN probably wish they could trade places with the fat boy, Kim. Screw the UN and horse they rode in on.
