Ehrlichman, John D(aniel) at English => English (The Britannica Concise) Of Explained:
U.S. presidential assistant central to the Watergate scandal. Born in Tacoma, Wash., he practiced law before joining R. Nixon's administration in 1969. With H. R. Haldeman he formed the so-called palace guard around the president. He soon established the group known as the "plumbers" to acquire political intelligence and stop information leaks. When members of the group were caught robbing Democratic headquarters, he became involved in the cover-up and was forced to resign in 1973. Convicted of conspiracy, perjury, and obstruction of justice, he served 18 months in jail.