Sen. Mark Warner (D-Va.) reportedly joked about revealing sensitive information about Special Counsel Robert Mueller's Russia probe at a high-dollar retreat on Martha’s Vineyard on Friday.

“If you get me one more glass of wine, I’ll tell you stuff only Bob Mueller and I know. If you think you’ve seen wild stuff so far, buckle up. It’s going to be a wild couple of months,” Warner, vice chairman of the Senate Intelligence Committee, reportedly said.

On "Fox & Friends" on Monday, Jonathan Turley quipped that this is the new chapter in his ever-expanding book: "Jokes You Do Not Make in Washington."

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"I don't know what's worse -- he had secrets and he was willing to share them or he had secrets and he was joking," Turley, a constitutional law professor, said. "Either way, it's serious."

He explained that Democrats can't question the professionalism or independence of Republican lawmakers providing oversight on the Russia probe and then joke about "trading secrets for booze."

"I'm sure he didn't mean that, it was a joke," Turley said. "But at this time, with everything at stake, you might want to keep those jokes to yourself."

Turley also weighed in on the Justice Department inspector general's bombshell report on the Clinton email probe, arguing that it doesn't poison Mueller's Russia investigation, but it could undermine it.

Inspector General Michael Horowitz concluded that the FBI's handling of the Clinton and Russia investigations was not motivated by political bias, though he singled out former FBI Director James Comey for harsh criticism and referred five other bureau employees for potential disciplinary action.

Most notably, Horowitz found that anti-Trump text messages between Peter Strzok and FBI attorney Lisa Page "potentially indicated or created the appearance that investigative decisions were impacted by bias or improper considerations."

Turley said this means that claims of selective prosecution may be given more serious consideration, and it could allow for greater discovery by Trump's legal team.

He added that investigators who have been implicated on bias issues are often called to the stand.

"That could conceivably make it into a hearing or even a trial," Turley said.

Watch more from "Fox & Friends" above.

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