Hillary Clinton scolded an environmental activist after a campaign event in New York on Thursday.

The reason? The activist asked Clinton about whether or not she would reject contributions coming from fossil fuel companies.

"I do not … have money from people who work for fossil fuel companies," Clinton blasted the activist. "I am so sick … I am so sick of the Sanders campaign lying about me."

The activist, Eva Resnick-Day, later wrote that she does not "work for and is in no way affiliated with the Sanders campaign," but insisted that Clinton "needs to stop taking that money today."

Clinton, though, has been wrapped up in scandals throughout the campaign cycle: from her private email server to secret monetary deals and more. The presidential candidate admits in the video that she does accept money from fossil fuel companies, and did not grant Resnick-Day the public rejection she requested.

Watch the fiery video above!