28 U.S.C. § 1251 : US Code - Section 1251: Original jurisdiction

Search 28 U.S.C. § 1251 : US Code - Section 1251: Original jurisdiction

(a) The Supreme Court shall have original and exclusive
jurisdiction of all controversies between two or more States.
(b) The Supreme Court shall have original but not exclusive
jurisdiction of:
(1) All actions or proceedings to which ambassadors, other
public ministers, consuls, or vice consuls of foreign states are
parties;
(2) All controversies between the United States and a State;
(3) All actions or proceedings by a State against the citizens
of another State or against aliens.