Answer:
the Supreme Court of suits
Explanation:
The extension of federal judicial power to controversies between states and the vesting of original jurisdiction in the Supreme Court of suits to which a state is a party had its origin in experience.
Under the Articles of Confederation, Congress was made “the last resort on appeal” to resolve “all disputes and differences . . . between two or more States concerning boundary, jurisdiction, or any other cause whatever,” and to constitute what in effect were ad hoc arbitral courts for determining such disputes and rendering a final judgment therein.
