Actor Robert De Niro's twice declared "Fuck Trump" live on stage at the Tony Awards ceremony Sunday night in New York. And the expletives were hardly his first -- or second -- divisive outbursts.  

De Niro, a 74-year-old Oscar winner, has repeatedly criticized the president in vulgar terms and stoked unfounded fears about vaccinating children. 

At a New York student journalism awards show Thursday, he told the audience of high schoolers that Trump makes up “bullshit.”

“Our country is led by a president who believes he can make up his own truth,” De Niro said. “And we have a word for that: bullshit.”

Last month, De Niro told the Daily Mail that Trump was banned from all Nobu restaurants, the sushi chain he co-owns.

In January, De Niro called Trump "baby-in-chief" and "jerk-off-in-chief" -- among other expletives -- during an awards ceremony for actress Meryl Streep. In response, The Washington Times called De Niro "mentally unstable," and cited De Niro as a prime example of why the left needs psychiatric help.

In April 2017, within the first 100 days of Trump's presidency, De Niro voiced concern that Trump could win recognition as a good president and said he had "debased" the presidency.

"He might do something and get credit for it, and everybody will think he's a great president or something, and that's my concern," he said in an interview with Bloomberg Businessweek.

In May 2017, while delivering a commencement address at Brown University, De Niro bleakly described to college graduates about the world they were entering under the Trump administration. 

"Well, the country's gone crazy," he said. "In movie terms, when you started school, the country was an inspiring, uplifting drama. You're graduating into a tragic, dumbass comedy."

De Niro also made waves in 2017 by speaking out against vaccinating children. Along with, Robert F. Kennedy Jr., a leader of the anti-vaccine movement who met with Trump, he held a press conference in Washington, DC, that promoted debunked fears about vaccinations, including that they cause autism. 

The press conference came after he included the anti-vaccine film "Vaxxed" in the 2016 Tribeca Film Festival, which he co-founded. 

De Niro has publicly denied that he is anti-vaccine, but has often shown sympathy for anti-vaccine causes.