As the toes of Rudy Giuliani continue to be put to the fire during the impeachment inquiry, the feisty former New York mayor says he has an “insurance policy,” that will keep him from going under, if things get too hot.

Giuliani says that he has dirt on former Vice President Joe Biden’s family “locked away,” that he plans to release if anything happens to him, as federal prosecutors investigate the former mayor for possible campaign finance violations and illegal lobbying. Presumably, what he claims to have on Biden is so damaging and criminal, that he means he can use it in some kind of plea or immunity deal, should he become under indictment.

The president’s personal lawyer took to Twitter over the weekend to clarify his repeated remarks about having “an insurance policy” should the president try to throw him “under the bus” amid the Ukraine scandal. Statements like that prompted some to believe that Giuliani was implying that he had some dirt on Trump, but he clarified by tweeting that the statement is “sarcastic” and that it “relates to the files in my safe about the Biden Family’s 4 decade monetizing of his office.”

He concluded the tweet saying, “If I disappear, it will appear immediately along with my RICO chart.”

His reference to RICO – the Racketeer Influenced and Corrupt Organizations Act, the federal law aimed at prosecuting organized crime – could indicate that Giuliani still has information that has not been released publicly from his days as a US Attorney in the 80s.  In a second tweet, Giuliani wrote, “The Mafia couldn’t kill me so NO, I am not worried about the swamp press.”

The tweets came hours after Giuliani was asked about the implication that he has compromising information on Trump should their relationship ever flounder during an interview on Fox News. While railing against “fake news,” Giuliani warned Trump against abandoning him – even as the former mayor becomes more deeply embroiled in the Ukraine scandal.

“I see things like, ‘he’s going to throw me under the bus’. I say he isn’t, but I have insurance,” Giuliani said with a shrug. During the interview, he did not specify what the “insurance” entailed but insisted he has a “very, very good relationship” with Trump anyway.

Giuliani is currently dealing with his own troubles, as he is the target of a federal investigation, following claims that he possibly engaged in illegal lobbying and campaign finance violations.