Article III, Section 1:
The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish. The Judges, both of the supreme and inferior Courts, shall hold their Offices during good Behaviour, and shall, at stated Times, receive for their Services, a Compensation, which shall not be diminished during their Continuance in Office.
Passing on the constitutionality of the establishment of the Sentencing Commission as an
independent body in the judicial branch, the Court acknowledged that the Commission is not a court and does not exercise judicial power. Rather, its function is to promulgate binding sentencing guidelines for federal courts. It acts, therefore, legislatively, and its membership of seven is composed of three judges and three nonjudges. But the standard of constitutionality, the Court held, is whether the entity exercises powers that are more appropriately performed by another branch or that undermine the integrity of the judiciary. Because the imposition of sentences is a function traditionally exercised within congressionally prescribed limits by federal judges, the Court found the functions of the Commission could be located in the judicial branch. Nor did performance of its functions contribute, in any meaningful way, to a weakening of the judiciary or an aggrandizement of power, the Court observed.1