The magician, who appeared on the show during that time, opened up to Variety about his experiences with the reality star-turned-president, saying he believes producer Mark Burnett has every incriminating moment on tape.
"He would say racially insensitive things that made me uncomfortable," Jillette said. "I don't think he ever said anything in that room like 'African-Americans are inferior' or anything about rape or grabbing women, but of those two hours every other day in a room with him, every 10 minutes was fingernails on chalkboard."
"He would ask one cast member if he'd rather have sex with this woman or that woman," Jillette continued, acknowledging he doesn't remember exact details from six years ago. "I can emotionally tell you things that happened racially, sexually, and that showed stupidity and lack of compassion when I was in the room with Donald Trump."
When pressed for specifics, Jillette noted he didn't want to get into them because "the stakes are now high, and I am an unreliable narrator," adding, "I guarantee you that I will get details wrong" because he was "not at my best" when he filmed the show.
The notion that the president was recorded making racist and sexist remarks on the sets of both "The Celebrity Apprentice" and "The Apprentice" comes at the heels of former White House aide Omarosa Manigault Newman's claim that she heard a recording of Trump using the N-word on set. The claim appears in her tell-all, "Unhinged," which was unveiled Tuesday.
"When it came to think about supporting him for president, I digested that information from being on the show with him and said, 'Absolutely not. He would be a terrible president,'" Jillette said of the 2016 presidential campaign. "And because I'd been around him and some people cared what I thought, I said that publicly every chance I got -- while also saying he's a good reality show."
"You want someone capricious and petty and narcissistic to be on your reality show, and boy -- I hate to say this -- but playing tapes of him doing that job might be unfair," he added. "I want those tapes to be used against him, but it might be unfair."