"Our baby-in-chief - the j***-off-in-chief, I call him - has put the press under siege, ridiculing it and trying to discredit it through outrageous attacks and lies", De Niro said.
The Oscar victor actor added, "It's no longer 'down with Trump.' It's 'f**k Trump!'"
At the Tony awards, De Niro launched an expletive at Trump and pumped his arms for emphasis.
Robert De Niro, fresh off the Tony Awards stage where he attacked the USA president, and celebrity chef Nobu Matsuhisa are in Toronto today to launch a major new development.
'I have one thing to say and that's F*** Trump, ' DeNiro boomed into the microphone.
Following the outburst, a CBS spokesperson told Deadline: "Mr. De Niro's comments were unscripted and unexpected".
The crowd at New York's Radio City Music Hall began cheering, then gave him a standing ovation. De Niro said of Springsteen: "Bruce, you can rock the house like nobody else and even more importantly in these perilous times, you rock the vote, always fighting for, in your own words, truth, transparency and integrity in government. Boy, do we need that now".
ABC's talk show The View's co-host Meghan McCain also critiqued De Niro: "When you're talking about how Trump is degrading our national discourse with his language, this is not the way to combat Trump, it only helps him".