Expanded Presidential Power refers to the growth of authority and influence that the President of the United States has exercised over time, often beyond the initial limits set by the Constitution. This concept highlights how, through various actions, decisions, and crises, presidents have asserted greater control over domestic and foreign affairs, reshaping the executive role in American governance. It illustrates a dynamic tension between the executive branch and other branches of government, leading to debates over the scope and limits of presidential authority.