In 1992 he co-wrote with Robert Gettlin: Silent Coup: The Removal of Richard Nixon. In the book the authors claim that John Dean ordered the Watergate break-in because he knew that a call-girl ring was operating out of the Democratic headquarters. The authors also argued that Alexander Haig was not Deep Throat but was a key source for Bob Woodward, who had briefed Haig at the White House in 1969 and 1970.