Article III of Constitution, Section. 2
The judicial Power shall extend to all Cases, in Law and
Equity, arising under this Constitution, the Laws of the United States, and
Treaties made, or which shall be made, under their Authority;--to all Cases
affecting Ambassadors, other public Ministers and Consuls; --to all Cases
of admiralty and maritime Jurisdiction;--to
Controversies to which the United States shall be a Party;--to Controversies
between two or more States;-- between a State and Citizens of another State;--between
Citizens of different States; --between Citizens of the same State claiming
Lands under Grants of different States, and between a State, or the Citizens
thereof, and foreign States, Citizens or Subjects.
In all Cases affecting Ambassadors, other public
Ministers and Consuls, and those in which a State shall be Party, the supreme
Court shall have original Jurisdiction. In all the other Cases before mentioned,
the Supreme Court shall have appellate Jurisdiction, both as to Law and Fact,
with such Exceptions, and under such Regulations as the Congress shall make.