John F. Kennedy was the 35th President of the United States (1961-1963), the youngest man elected to the office. On November 22, 1963, when he was hardly past his first thousand days in office, JFK was assassinated in Dallas, Texas, becoming also the youngest President to die. In 1956 Kennedy almost gained the Democratic nomination for Vice President, and four years later was a first-ballot nominee for President. Millions watched his television debates with the Republican candidate, Richard M. Nixon. Winning by a narrow margin in the popular vote, Kennedy became the first Roman Catholic President.