You're possibly stuck on the notion that, because congress' powers are enumerated, the president's are, too. They're not. He has enumerated responsibilities, not enumerated powers. His power is "the executive power," which is undefined in the constitution but is fairly close to what a constitutional monarch has.

That enumerated responsibilities thing is key, here, because among those responsibilities is to "take care that the laws be faithfully executed." He cannot do that in areas in rebellion, or occupied by an attacking enemy. This should tell you something about his power, he MUST wage war – even if only on his own hook – when necessary to fulfill his responsibilities.

a president was never supposed to have the amount of power one does now either. Lincoln made sure that the president was temporarily god.

mises.org/library/origins-electoral-college

However, as the author notes, it's become commonly accepted that the electors choose the winner of the college, and without re-educating the public on the process, it's too late to turn back now. Unlike choosing representatives, picking the president was never supposed to be democratic, but here we are.