John Daniel Ehrlichman was counsel and Assistant to the President for Domestic Affairs under President Richard Nixon. He was a key figure in events leading to the Watergate first break-in and the ensuing Watergate scandal, for which he was convicted of conspiracy, obstruction of justice, and perjury and served a year and a half in prison. Wikipedia*
On the C-SPAN Networks:
John Ehrlichman has seven videos in the C-SPAN Video Library; the first appearance was a 1973 Vignette. Most appearances with Robert H. Finch (2). Most common tag: Nixon, Richard.