Here's How To Catch The Anonymous Book Writer
Then Anonymous Op-Ed writer and now Anonymous book writer is apparently looking to cash in on his or her fame. Everyone is trying to figure out who it is.
Here's an easy way to possibly do that. The writer may have to file that on a personal financial disclosure form. The author could have already left the administration, or could leave it later before being required to file the disclosure, so this may not be a foolproof method.
Most likely the author felt that they had to do it now, because they believe that Trump may soon be leaving office because of his current Ukraine impeachment scandal. Or if he beats that, he could get caught in something else.