After missing his speaking slot having arrived late, the NYC native was laughed at by diplomats from around the world when he boasted about his administration's acheivments.

UPDATE: Trump Says World Leaders Were ‘Laughing With Me’

He got another laugh later from the German delegation when he asserted the country would be fully dependent on Russian energy unless they "immediately change course." (@ 21:45)

One of the German diplomats shakes his head in disbelief.

Full speech

UPDATE: UN Ambassador Nikki Haley - "They laughed at him out of respect"

Flashback to 2014:

We need a President who isn't a laughing stock to the entire World. We need a truly great leader, a genius at strategy and winning. Respect!

— Donald J. Trump (@realDonaldTrump) August 9, 2014