Maxine Waters appeared at an anti-wall protest in Los Angeles on Monday, and was triggered by a lone pro-Trump protester.

James Rojas captured the moment Waters was addressing the crowd and a man wearing a MAGA hat and waving an American flag.

“This president is trying to keep a campaign promise to all of those people that he swore he would build a wall,” Waters shouted.

“And those people who want the wall are not not patriots, they’re not people who love this country, they’re not people who stand up for what’s right, and so we’ve got to resist this president and this so-called fake emergency,” she said.

Moments later, the lone protester stood near Waters, disrupting her rant outside Los Angeles City Hall.

Someone tried to grab his flag as he was berated as “fascist.”

“America!” the man yelled as the crowd grew angrier with his presence.

“Stop this fake president,” Waters chanted as the protesters joined in.

As police decided to move the man away from Waters and the anti-wall protesters, she taunted him, and the crowd joined in.

“He’s confused,” she repeated.

“Go f*ck yourself!” a Waters supporter yelled at him.