Oh, I am sure he has had coaching, as he does the equivalent of a Wagnerian Singer night after night doing the Ring Cycle.
One of my students played Mama Rose in “Gypsy” when she was 16 years old. That’s two hours of nearly solid singing. She had 7 years of lessons when she did that and was able to do two performances in one day.
And, unlike actors, President Trump BELIEVES in what he is saying.
So true, especially the last.