Robert De Niro

The Goodfellas star is another celebrity Trump has frequently exchanged barbs with over the years and the President called De Niro "sick and demented" earlier this year.

Referring to representatives leaving his State of the Union address earlier this year, Trump ranted on Truth Social: "They had the bulging, bloodshot eyes of crazy people, LUNATICS, mentally deranged and sick who, frankly, look like they should be institutionalised.

"They should actually get on a boat with Trump Deranged Robert De Niro, another sick and demented person with, I believe, an extremely Low IQ, who has absolutely no idea what he is doing or saying – some of which is seriously CRIMINAL!"