John F Kennedy served in the following positions during his lifetime.
Member of the House of Representatives. - Kennedy represented the 11th district out of Massachusetts from 1947-1953.
Member of the Senate- Kennedy became a Senator representing the state of Massachusetts from 1953-1960.
President of the United States. - Kennedy defeated Richard Nixon in order to become the president of the US in the election of 1960. Kennedy would serve from the beginning of 1961 until his assassination on November 22nd, 1963.
