Woodward was asked ‐ via a question posed on Twitter ‐ about a possible subpoena of his notes and recording from special counsel Robert Mueller or the Justice Department:
I obviously hope it doesn’t happen, and I expect it not to happen, simply because I deal with lots of very sensitive national security issues and debates. I’ve done this for now 47 years and in nine presidencies ‐ and tried to provide as much information in the book, but not going so far as to disclose sources and methods to harm operations essential to the security of this country or that might get somebody killed or get some source blown.