Presidential leadership and administrations of Truman, Eisenhower, Kennedy

What overall lessons did you learn about after briefly reviewing the presidential leadership and administrations of Truman, Eisenhower, Kennedy, Nixon, and Carter? (Choose at two of these presidencies) What commonalities did you find? What differences did you find? What were some of the foreign policy initiatives proposed by Presidents Truman, Eisenhower, Kennedy, Nixon, and Carter? (Choose at two of these presidencies)