structural:reformatting, stylistic:tone
Presidency (1961–1963)

Kennedy was sworn in as the 35th president at noon on January 20, 1961. In his inaugural address, he spoke of the need for all Americans to be active citizens: "Ask not what your country can do for you—ask what you can do for your country." He asked the nations of the world to join to fight what he called the "common enemies of man: tyranny, poverty, disease, and war itself." He added:

All this will not be finished in the first one hundred days. Nor will it be finished in the first one thousand days, nor in the life of this Administration, nor even perhaps in our lifetime on this planet. But let us begin." In closing, he expanded on his desire for greater internationalism: "Finally, whether you are citizens of America or citizens of the world, ask of us here the same high standards of strength and sacrifice which we ask of you.

The address reflected Kennedy's confidence that his administration would chart a historically significant course in both domestic policy and foreign affairs. The contrast between this optimistic vision and the pressures of managing daily political realities would be one of the main tensions of the early years of his administration.

Kennedy scrapped the decision-making structure of Eisenhower, preferring an organizational structure of a wheel with all the spokes leading to the president; he was willing to make the increased number of quick decisions required in such an environment. Though the cabinet remained important, Kennedy generally relied more on his staffers within the Executive Office. In spite of concerns over nepotism, Kennedy's father insisted that Robert Kennedy become U.S. Attorney General, and the younger Kennedy became the "assistant president" who advised on all major issues.