Presidents and prime ministers who are naturist

Well it looks like its going to be Trump as the next President of the good old USA.Anyone know if he's a naturist,during ww2 Churchill was caught wandering around the white house nude by the President.The President looked shocked ,Churchill said to him "The Prime minister of the United Kingdom of Great Britain and its colonies has  nothing to hide from the president of the USA.
Angela Merkel of Germany was a naturist in her youth in East Germany,allegedly