Was the first Vice President to sit on the National Security Council.
Is one of five Vice Presidents to be elected to the U.S. Senate after
serving as Vice President. The other four were John C. Calhoun, John C.
Breckinridge, Hannibal Hamlin and Hubert Humphrey.
Being 75 years of age at the time he left office, he is the oldest U.S. Vice-President to date.