The correct answer to this open question is the following.
The Constitutional powers of the President of the United States are the following.
The US President is the leader of the United States. He is the chief diplomat, he is the commander-in-chief of the US armed forces(Airforce, Navy, Army, Coastal Guard). He has the power to veto bills and sign bills. He can enforce legislation passed by Congress. He leads the executive branch and the Cabinet and appoints Supreme Court Justices.
One example of a president exceeding his authority is when he wants to make treaties without the approval of the US Senate or wants to declare war without the approval of Congress. because according to the US Constitution, the power to declare war relies on Congress.
The Powers of the President that are shared with Congress are foreign relations, the appointment of Ambassadors, make treaties, and approving legislation. The President cannot declare war, for that to happen it needs the authorization of Congress, although the President can send troops to any country. Presidential powers are detailed in Article II of the US Constitution.
