How does Kennedy mainly apply constitutional principles to support his ideas in the speech? He refers to the constitutional division of powers to emphasize the need for an effective President who helps balance the power of government.

He refers to the constitutional division of powers to highlight the importance of communication between the President and members of Congress.

He refers to the constitution to challenge the idea that strong Presidents are likely to become dictators without certain checks and balances.

He refers to the constitution to underscore a President's responsibilities in domestic affairs, such as farming and education.