The day after cursing President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE at the Tony Awards, Robert De Niro on Monday offered an apology for Trump’s attacks on Canadian Prime Minister Justin Trudeau while speaking at an event in Toronto.

“And I just want to make a note of apology for the idiotic behavior of my president,” De Niro said at the event to launch a new business development, CBC reported.

“It’s a disgrace, and I apologize to Justin Trudeau and the other people at the G-7. It’s disgusting,” he continued.

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The actor has been a vocal critic of Trump, twice declaring “f--- Trump” during the Tony Awards on Sunday night and receiving a standing ovation.

“I’m going to say one thing: ‘F--- Trump,’” De Niro said at the Broadway award show. “It’s no longer ‘down with Trump,' it’s ‘f--- Trump.’”

Trump and his top economic aides launched scathing attacks on Trudeau over the weekend amid their ongoing fight on trade.

The president called Trudeau “disgusting” and “weak” for how he pushed back against steep tariffs imposed by the U.S. on steel and aluminum imports from Canada and other trade allies.

PM Justin Trudeau of Canada acted so meek and mild during our @G7 meetings only to give a news conference after I left saying that, “US Tariffs were kind of insulting” and he “will not be pushed around.” Very dishonest & weak. Our Tariffs are in response to his of 270% on dairy! — Donald J. Trump (@realDonaldTrump) June 9, 2018

Fair Trade is now to be called Fool Trade if it is not Reciprocal. According to a Canada release, they make almost 100 Billion Dollars in Trade with U.S. (guess they were bragging and got caught!). Minimum is 17B. Tax Dairy from us at 270%. Then Justin acts hurt when called out! — Donald J. Trump (@realDonaldTrump) June 11, 2018

White House economic adviser Larry Kudlow labelled Trudeau’s comments “a betrayal.” And Trump trade official Peter Navarro said there was a “special place in hell” for foreign leaders like Trudeau who deal with Trump in "bad faith."

Canada's foreign affairs minister, Chrystia Freeland, responded to the attacks by saying the country “does not believe that ad hominem attacks are a particularly appropriate or useful way to conduct our relations with other countries.”