Article 2 of the US Constitution lists the major ones:
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States; he may require the Opinion, in writing, of the principal Officer in each of the executive Departments, upon any subject relating to the Duties of their respective Offices, and he shall have Power to Grant Reprieves and Pardons for Offenses against the United States, except in Cases of Impeachment.
You will notice that he is only commander in chief of the army and navy. The marines are part of the navy, organized under the secretary of the navy.
But what about the air force? The air force was organized from the US Army air corps in 1947, but the army still has airplanes - a lot of airplanes. The president theoretically needs to pass orders to the secretary of defense to the secretary of the air force to the various commanders. On the other hand, he can directly issue orders to a buck private in the Army.
You could write an interesting movie script about a controversial president - perhaps a mixed race one - issuing orders to an airman which countermand the direct orders of an Air Force officer, and because he obeys the President, his bigoted commander has him court-martial-led for refusing to follow orders.
i think the Sunday times
''bush
To Preserve, Protect, and defend the constitution of the U.S.
Jefferson and Carter
The 25th Amendment
yes
She died long before her husband was president.
No yes no maybe yes who cares
the presidents duties include approving or dissaproving laws.
Washington and Jefferson
The Second Article (Article II ) gives this information.
Tyyy
Today vice presidents serve as principal advisors to the president, but from 1789 until the 1950s their primary duty was to preside over the Senate.