Conspiracy theorist Jerome Corsi claimed he entered into a secret joint defense agreement with Trump before he began speaking with special counsel investigators this summer, right-wing news website The Daily Caller reported.

Relying on an advance copy of Corsi’s forthcoming 60,000 word e-tome on his time with the Mueller investigation, the website reported that Trump attorney Jay Sekulow suggested to Corsi’s attorney that Trump and the conspiracy theorist keep the agreement verbal.

“This saved creating a document that might appear later in some relevant legal proceeding or newspaper article,” the website cites the book as saying.

Corsi purportedly goes into more detail about the agreement in the book. He writes that per the deal, “we and the White House would be permitted to share information privately about the Special Prosecutor’s investigation, with the goal of the White House and me assisting one another in defending ourselves.”

Sekulow did not immediately reply to a request for comment. Corsi attorney David Gray did not return a request for comment.

Gray supposedly called Sekulow after a series of conversations and accepted the offer.

“After debating the pros and cons, we had decided that anytime we could get the attorney for the president of the United States to offer assistance to us, we needed to say to be thankful and accept,” the website cites Corsi’s book as saying.