Power and the Presidency, From Kennedy to Obama

To be sure, the President’s control over foreign affairs had been growing since the Theodore Roosevelt administration (and still grows today). TR’s acquisition of the Panama Canal Zone preceded Woodrow Wilson’s decision to enter World War I, which was a prelude to Franklin Delano Roosevelt’s management of the run-up to the victorious American effort in World War II. In the 1950s, Harry S. Truman’s response to the Soviet threat included the decision to fight in Korea without a Congressional declaration of war, and Dwight Eisenhower used the Central Intelligence Agency and brinksmanship to contain Communism.