Jon Stewart says it's Donald Trump's "shamelessness" that makes the former president so "dangerous."

"I thought it made him a buffoon," the former "Daily Show" host said of Trump's "ridiculousness" when he first sought the 2016 Republican nomination for president, "and I thought that’s what would disqualify him."

"What it did is made him the perfect vessel," Stewart said in an interview with The Hollywood Reporter published Wednesday.

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"You have to be shameless to do shameful things," said the 58-year-old comedian and veterans' rights advocate, promoting his forthcoming Apple TV+ series, "The Problem with Jon Stewart."

"I’m not saying he’s the same as these figures, but the most dangerous figures are the ones that seem comic and absurd," Stewart said. "[Former Iraqi President] Saddam Hussein seems absurd. [Former Libyan leader] Moammar Gadhafi would stand in a kaftan and rant like a madman."

The Emmy Award-winner also offered details about his new single-issue show, poised to premiere on Sep. 30, which the subscription streaming service has said "will explore topics that are currently part of the national conversation."

"I’m really interested in that area that exists between rhetoric and reality," Stewart explained. "So, the first episode deals with service people, and everyone’s like, 'Oh, we love our military.' Well, I don’t know if you’ve been paying attention, but they might not be feeling the love."

The second episode of the biweekly series, Stewart said, will focus on "essential workers and the idea that they’re not the beneficiaries of any of the interventions."

"Honestly, it’s the same things that animated 'The Daily Show,' we’re just adjusting the dials slightly," he said.