The expressed powers of the President are those expressed in the Constitution of the United States.
The delegated powers are a list of items found in the U.S. Constitution that set forth the authoritative capacity of Congress.
Inherent powers are assumed powers of the president not specifically listed in the Constitution.
The president of the United States, as head of the executive branch, has the authority to declare a federal state of emergency.
In the United States, an executive order is an order or directive issued by the head of the executive branch at some level of government.
Executive privilege is the power claimed by the President to resist subpoenas and other interventions by other branches of government.
Presidential power has shifted over time, which has resulted in claims that the modern presidency has become too powerful.