(1917-1963) Thirty-fifth president of the United States, 1961-1963. A navy hero from World War II and son of a prominent Boston businessman, Kennedy won election to the House of Representatives in 1946 and to the Senate in 1952. In 1960, he narrowly defeated incumbent vice president Richard Nixon in 1960 to become the youngest person ever elected president. As president, he launched New Frontier programs and urged legislation to improve civil rights. He assumed blame for the Bay of Pigs invasion and was credited for impressively handling the Cuban missile crisis. Kennedy was assassinated in Dallas, Texas, on November 22, 1963, by Lee Harvey Oswald.