Supreme Court of the United States
Jurisdiction
Congress is authorized by Article III of the federal Constitution to regulate the Supreme Court's appellate jurisdiction. The Supreme Court has original and exclusive jurisdiction over cases between two or more states but may decline to hear such cases. It also possesses original but not exclusive jurisdiction to hear "all actions or proceedings to which ambassadors, other public ministers, consuls, or vice consuls of foreign states are parties; all controversies between the United States and a State; and all actions or proceedings by a State against the citizens of another State or against aliens".
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