upon which that objection is founded; and shall take it for granted, as an inference from them, that the union of the Executive with the Senate, in the article of treaties, is no infringement of that rule. I venture to add, that the particular nature of the power of making treaties indicates a peculiar propriety in that union. Though several writers on the subject of government place that power in the class of executive authorities, yet this is evidently an arbitrary disposition; for if we attend carefully to its operation, it will be found to partake more of the legislative than of the executive character, though it does not seem strictly to fall within the definition of either of them. The essence of the legislative authority is to enact laws, or, in other words, to prescribe rules for the regulation of the society; while the execution of the laws, and the employment of the common strength, either for this purpose or for the common defense, seem to comprise all the functions of the executive magistrate. The power of making treaties is, plainly, neither the one nor the other. It relates neither to the execution of the subsisting laws, nor to the enaction of new ones; and still less to an exertion of the common strength. Its objects are contracts with foreign nations, which have the force of law, but derive it from the obligations of good faith. They are not rules prescribed by the sovereign to the subject, but agreements between sovereign and sovereign. The power in question seems therefore to form a distinct department, and to belong, properly, neither to the legislative nor to the executive. The qualities elsewhere detailed as indispensable in the management of foreign negotiations, point out the Executive as the most fit agent in those transactions; while the vast importance of the trust, and the operation of treaties as laws, plead strongly for the participation of the whole or a portion of the legislative body in the office of making them.
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 entrust that power to an elective magistrate of four years’ duration. It has been