Summary

John McLean In re Metzger — Opinion of the Court

The Supreme Court is the only court named in the constitution, and even this high tribunal has no existence simply by the force and operation of the constitution itself. Until Congress brought it into existence, and gave it organization, it existed rather in posse than in esse. But the inferior courts, the Circuit and District Courts, exist only under the authority of legislation. Congress alone created them, meted out to each the powers which it enjoys, prescribed the orbit within which it should move, and prescribed every limit by which its jurisdiction was to be ascertained.
Source: Wikisource

John McLean In re Metzger — Opinion of the Court

It is a new idea to me that the treaty-making power can, by the most latitudinarian construction, be held to be a constitutional source of power and jurisdiction to any court or judge of the United States. New objects of judicial power, new subjects upon which it is to operate, may extend the number of cases which may be presented for judicial decision, but can never be appealed to as a grant of judicial power. Treaty stipulations operate only directly upon the parties to them, and not upon the citizens, except as part of the law of their own land.
Source: Wikisource

John McLean In re Metzger — Opinion of the Court

It is contended that the treaty, without the aid of legislation, does not authorize an arrest of a fugitive from France, however clearly the crime may be proved against him;-that the treaty provides for a surrender by the executive only, and not through the instrumentality of the judicial power.
The mode adopted by the executive in the present case seems to be the proper one. Under the provisions of the constitution, the treaty is the supreme law of the land, and, in regard to rights and responsibilities growing out of it, it may become a subject of judicial cognizance.
Source: Wikisource

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