Article III of the United States Constitution
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, received for their Services, a Compenstion, which shall not be diminished during their Continuance in Office.

Section 2. The judicial Power shall exten 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 Minister 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 Jurisdiciton, both as to Law and Fact, with such Exceptions, and under such Regulations as the Congress shall make.  The Trial of all Crimes, except in Cases of Impeachment, shall be by Jury; and such Trial shall be held in the State where the said within any State, the Trial shall be at such Place or Places as the Congress may by Law have directed.

Section 3. Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort.  No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
      The Congress shall have Power to declare the Punishment of Treason, but no Attainder of Treason shall work Corruption of Blood, or Forfeiture except during the Life of the Person attainted.

Article III of the U.S. Constitution established the Supreme Court, the court cases that followed the ratification of the Constitution helped define the Supreme Court and their powers.
Epstein, Lee and Walker, Thomas G.,(2001)  "Constitutional Law for a Changing America." CQ Press, Washington D.C.
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