Robert De Niro — one of Hollywood’s most outspoken critics of President TrumpDonald John TrumpThis week: House kicks off public phase of impeachment inquiry Impeachment week: Trump probe hits crucial point Judd Gregg: The big, big and bigger problem MORE — says Democrats need “to be more aggressive” in standing up to the commander in chief.

“The things that Trump has done, if Obama had done one-fiftieth, they’d be all over him,” De Niro said in an interview with The Guardian published Sunday.

“That’s why I feel that Democrats have to be more aggressive,” the Academy Award winner continued.

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While Michelle ObamaMichelle LeVaughn Robinson ObamaBloomberg threatens to shake up 2020 primary The Hill's Campaign Report: Bloomberg looks to upend Democratic race Michelle Obama unveils all-star lineup for 2020 get-out-the-vote push MORE famously said “When they go low, we go high,” at the 2016 Democratic National Convention, the 75-year-old actor, who plays special counsel Robert MuellerRobert (Bob) Swan MuellerSpeier says impeachment inquiry shows 'very strong case of bribery' by Trump Gowdy: I '100 percent' still believe public congressional hearings are 'a circus' Comey: Mueller 'didn't succeed in his mission because there was inadequate transparency' MORE on “Saturday Night Live,” said he would advise a different approach.

“You’ve got to stand up. You can’t be so gentlemanly all the time because you’ve just got to say: ‘Sorry, I’m nice to a point, then I’ve got to push back.’ ”

In the same interview, De Niro also said he considers Trump a fascist and a white supremacist. 

De Niro has railed against the president in countless interviews and public appearances, saying onstage at last year’s Tony Awards, “F--- Trump!” He has also referred to Trump as a “jerkoff in chief” and a “f---ing idiot.”

Trump has hit back at De Niro in the past, nicknaming him “Punchy” and dubbing him a “very low IQ individual” in a tweet last year.