Trump slams 'low IQ' and 'punch-drunk' De Niro after star's F-bomb attack President Trump on Tuesday slammed Robert De Niro as a "very Low IQ individual" who has "received to many shots to the head," after the actor's profanity-laced tirade during Sunday's politically charged Tony Awards. "Robert De Niro, a very Low IQ individual, has received to many shots to the head by real boxers in movies," Trump wrote.