U.S. Constitution, Article III — The Judicial Branch, Section 2, Clause 1
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.
The bracketed words were modified by the Eleventh Amendment.
Notes
Extends the federal judicial power to cases under the Constitution, federal laws and treaties; cases affecting ambassadors; admiralty and maritime cases; controversies involving the United States, two or more states, a state and another state's citizens, citizens of different states, and citizens or states and foreign states or their citizens.
Use as reference
Lexinter.net | U.S. Const. art. III, § 2, cl. 1 | https://laws.lexinter.net/constitution/us/article-3/section-2/clause-1