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That's patently false lol. He made an idiotic hyperbolic brag, totally deadpan, then everyone laughed at him, then he tried to make out like he was in on the joke. It's blatantly obvious 

https://twitter.com/NBCNews/status/1044598296709406723 …
...when the entire UN laughed in his face. He was totally deadpan till he noticed. I'm not one to jump on every tiny thing he does like some people but this was a hilariously fitting moment for what a clown the world sees him as
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