 Senator, and Clifford tried to assuage Truman's suspicion of Kennedy and his father, Joseph P. Kennedy.In 1960, Clifford was a member of President-elect Kennedy's Committee on the Defense Establishment, headed by Stuart Symington.In May 1961, Kennedy appointed Clifford to the President's Foreign Intelligence Advisory Board, which he chaired beginning in April 1963 and ending in January 1968.