Jack Brennan

Jack Brennan
Brennan in 1969
Birth nameJohn Vincent Brennan
Nickname(s)"Jack"
Born(1937-08-16)August 16, 1937
Fall River, Massachusetts, U.S.
DiedOctober 20, 2023(2023-10-20) (aged 86)
AllegianceUnited States
Service / branch United States Marine Corps
Years of service1956–1975
Rank Colonel
Battles / warsVietnam War
Awards

John Vincent Brennan (August 16, 1937 – October 20, 2023) was a United States Marine Corps officer and political aide. He is best known as being President Richard Nixon's post-resignation chief of staff.