Alexander Hamilton, a former Delegate, from New York, to the Constitutional Convention, using the penname “Publius,” publishes “Federalist #75,” discusses why the treaty making power should not be solely entrusted in a single branch of the government.  In paragraph four he writes,

       However proper or safe it may be in governments where the executive magistrate is an hereditary monarch, to commit to him the entire power of making treaties, it would be utterly unsafe and improper to intrust [sic] that power to an elective magistrate of four years’ duration. … [A] man raised from the station of a private citizen to the rank of chief magistrate, possessed of a moderate or slender fortune, and looking forward to a period not very remote when he may probably be obliged to return to the station from which he was taken, might sometimes be under temptations to sacrifice his duty to his interest, which it would require superlative virtue to withstand.  An avaricious man might be tempted to betray the interests of the state to the acquisition of wealth.  An ambitious man might make his own aggrandizement, by the aid of a foreign power, the price of his treachery to his constituents. …

       [restored 12/13/2024]