Commissioner of the National Basketball Association (1975-1984).
Special Assistant to the President for Congressional Relations and
Personnel (1961-1965).
Chairman of the Democratic National Committee (1968-1969,
1970-1973).
Postmaster General of the United States (1965-1968).
As Democratic National Chairman, it was his office that the burglars
entered in the infamous 1972 break-in at the Watergate Hotel, leading
to one of the greatest scandals in American history.