Jon Stewart may be be leaving “The Daily Show” this summer, but he’s not going out quietly.

On Thursday night, Stewart reignited an ongoing feud with Donald Trump, or, as he calls him, “Fuckface von Clownstick.”

Trump has been openly toying — again — with running for president, and said in a recent interview that he had a “foolproof” plan for defeating ISIS.

But Trump also said that he wasn’t going to share it.

“Not because I don’t have a foolproof plan, I do. I have a foolproof plan that would work 100 percent, save thousands and thousands of lives, but I’m not going to tell you,” Stewart said, while doing an impression of Trump. “I’m withholding it for now, because I am a tremendous asshole.”

Trump, who is active on Twitter, has yet to respond.

Stewart also shared some thoughts on other presidential wannabes, including Rick Santorum, George Pataki, Carly Fiorina, Lindsey Graham, Hillary Clinton and Bernie Sanders.

Check it out in the clip above.

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