Dean, John Wesley, III at English => English (The Britannica Concise) Of Explained:
U.S. lawyer and White House counsel. Born in Akron, Ohio, he studied law at Georgetown Univ. and in 1970 was appointed White House counsel by Pres. R. Nixon. In 1972 Nixon asked Dean to investigate whether White House personnel were involved in the Watergate Hotel break-in (see Watergate scandal). Refusing to participate in a cover-up, Dean began telling federal investigators what he knew. He was fired by Nixon in April 1973 and two months later testified before a Senate committee about obstruction of justice by White House officials, incl. the president. His revelations ultimately led to Nixon's resignation.