how many vice presidents have resigned from office?
Spiro Theodore Agnew (/ˈspɪroʊ ˈæɡnjuː/; November 9, 1918 – September 17, 1996) was the 39th vice president of the United States from 1969 until his resignation in 1973. He is the second and most recent vice president to resign the position, the other being John C. Calhoun in 1832.