Final answer:
Americans hold high expectations for their presidents to fulfill national aspirations while managing domestic matters. However, the president's ability to meet these expectations is limited, especially in domestic policy, where they face significant constraints. They enjoy more power and visibility in foreign affairs and during periods of crisis.
Step-by-step explanation:
It is true that Americans have high expectations for their presidents, who are hoped to fulfill their aspirations and dreams while also managing practical concerns such as jobs, peace, and prosperity. Presidents engage in soaring rhetoric during their campaigns, often promising action on a range of issues from the economy to foreign policy. However, in reality, the president's power to meet these expectations is limited. They have more sway in foreign and defense policy as the commander in chief and America's chief diplomat, but their influence over the economy and other domestic affairs is more constrained by other branches of government and a variety of uncontrollable circumstances.
Presidents must navigate public opinion and the media, who often focus on the presidency during times of crisis, potentially enhancing their approval ratings and their leverage in enacting policies. They face the challenge of dealing with a Congress that may support or oppose their proposals, directly impacting their ability to accomplish their goals. Additionally, certain circumstances, such as the composition of Congress or the occurrence of crises, provide opportunities to exert a more independent leadership.