WATCH: Comedian Robert Klein gets in Trump supporter's face after ripping president for adultery with porn stars

TMZ caught legendary comedian Robert Klein on the street and asked him what he thought about President Donald Trump, only to get an F-bomb-filled tirade about the president "f*cking" porn stars.

During the rant, Klein went off on criminality within the Trump administration as well as controversial Supreme Court Justice Brett Kavanaugh.

As he wound down, some Trump supporters heckled him and that led him to go face-to-face with them before being pulled away by a companion as he exclaimed, "This is what America's become!"

Watch the video below via TMZ: