Art.
III, § 2, cl. 2
In all cases
affecting Ambassadors, other public Ministers and Consuls, and those in which a
State shall be a Party, the supreme Court shall have
original Jurisdiction. In all the other Cases before mentioned, the supreme Court shall have appellate Jurisdiction . . . with
such Exceptions . . . as the Congress shall make.
Art. III, § 2, cl. 1
The Judicial Power
shall extend to all Cases . . . arising under this Constitution . . . .