John Fitzgerald Kennedy (May 29, 1917–November 22, 1963), was the thirty-fifth President of the United States, serving from 1961 until his assassination in 1963.After Kennedy's military service as commander of the USS PT-109 during World War II in the South Pacific, his aspirations turned political. Kennedy represented the state of Massachusetts in the U.S. House of Representatives from 1947 to 1953 as a Democrat, and in the U.S. Senate from 1953 until 1961. Kennedy defeated former Vice P