Trump supporter crashes Robert De Niro's Broadway musical with 'Keep America Great' banner

Legendary actor Robert De Niro received a taste of his own medicine over the weekend when a supporter of President Donald Trump crashed his Broadway musical, "A Bronx Tale: The Musical," shouting and waving a "Keep American Great" banner.

What happened?

According to witnesses, at the end of the performance during the curtain call, the Trump supporter, sitting near the stage, whipped out his "Keep America Great: Trump 2020" banner to make an obvious political statement.

One audience member said he was disappointed with the Trump supporter's choice of protest venue.

"The times we live in. At the end of A Bronx Tale, a man turned around and faced the audience to show us how big of a pair he has. He was escorted shortly after. It's sad that people can't enjoy a beautiful show and embrace its unifying message without politicizing it," Joe Del Vicario wrote on Twitter.

Meanwhile, Brian Strumwasser, a hair dresser who worked on the show, lambasted the protester's as "low life scum bag."

"Whoever the low life scum bag who thinks it’s ok to post their political views at a Broadway show and disrespect everyone there who paid to watch a show that is ALL ABOUT INCLUSION was thankfully removed from the theater Saturday night," Strumwasser wrote on Instagram, according to the New York Post.

For unknown reasons, Strumwasser appeared to have deleted his social media accounts by Monday.

What led to this?

The incident came one week after De Niro delivered perhaps his most pointed criticism of the president yet at this year's Tony Awards.

"I’m gonna say one thing: F*** Trump. It’s no longer, ‘Down with Trump, it’s ‘F*** Trump,'" De Niro said.

Last month, De Niro also made headlines with his anti-Trumpism when he banned Trump from his high-end sushi restaurants. The ban garnered the White House's attention, which said the ban was feckless since Trump did not plan to dine at one of De Niro's establishments.