The Constitution of the United States assigns several powers to the president, including the power to veto or sign legislation, convene or adjourn Congress and command the armed forces. The U.S. President also nominates and assigns heads of governmental departments, issues pardons for federal offenses and issues executive orders without congressional approval.
As Commander in Chief of the Armed Forces, the president is awarded the power to manage the economy as well as national security and summon local units of the National Guard in times of emergency. The president is not permitted to declare war without approval from congress. However, as the Commander in Chief, the president may send troops to battle without formally declaring war.
The president is given the power to nominate candidates for heads of governmental offices. The president nominates his cabinet officials at the beginning of his presidency and subsequently fills voids as he deems necessary. The president is also given the power to nominate Supreme Court justices, the chief justice and Federal Circuit Court judges.
The United States Constitution grants the president the power to issue executive orders and grants without approval from Congress. The president may grant pardons to any individual convicted of a federal crime, save for those impeached by Congress. In times of emergency, the president can also issue executive orders that override congressional actions.