One executive.
Not one unchecked ruler.

What Article II establishes

Article II vests executive power in one president.1 Hamilton defended unity because decision, activity, secrecy, dispatch, and responsibility are easier to locate in one executive than in a committee.4

That argument answers who leads the executive branch. It does not erase the powers vested elsewhere.

What the same Constitution withholds

Hamilton's president was not a king

In Federalist No. 69, Hamilton distinguished the proposed presidency from the British monarchy: limited tenure instead of hereditary rule, qualified veto instead of absolute veto, shared appointment and treaty powers, and exposure to impeachment and prosecution.3

Federalist No. 70 argues for energy in the executive. Federalist No. 69 defines the limits of that executive. Reading one without the other manufactures a founding-era endorsement of power Hamilton was explicitly denying.

Checks and balances were the point

“Ambition must be made to counteract ambition.”James Madison, Federalist No. 512

Madison did not assume good character would restrain every officeholder. The constitutional structure gives institutions both reasons and means to resist encroachment by the others.

The honest modern question

The serious debate is not “strong president or weak president.” It is which acts belong to executive control and which attempt to absorb powers assigned to another institution. Calling every restraint an attack on presidential authority assumes the conclusion the Constitution was designed to contest.