A heckler with a scathing message for President Donald Trump interrupted Sen. Bernie Sanders (I-Vt.) during his campaign rally in Council Bluffs, Iowa, on Thursday night.

“Tonight, we say to Donald Trump and the fossil fuel industry ...” the 2020 presidential candidate began.

“Fuck you!” a man in the crowd at the Mid-America Center shouted.

The comment elicited laughter from the audience, and a chuckle from Sanders.

“Well, that is one way of phrasing it,” Sanders said. “I, myself, was gonna say it a little differently. I am a senator.”

Check out the clip here: