Mississippi v. Louisiana

Background

A group of private landowners called the Houston Group sued other private parties in federal district court in Mississippi to quiet title to land along the west bank of the Mississippi River near Lake Providence. Louisiana and the Lake Providence Port Commission intervened and Louisiana filed a third-party complaint asking the court to decide the boundary between Louisiana and Mississippi. Louisiana also asked permission to file an original complaint against Mississippi in this Court, but the Court denied that request.

Reasoning

The central question was whether the District Court could hear Louisiana’s third-party claim against Mississippi. The Court held that a federal statute, 28 U.S.C. §1251(a), gives the Supreme Court original and exclusive jurisdiction over controversies between States, and so other federal courts cannot decide disputes where one State sues another. The opinion explained that a district court may resolve private title issues in a suit between private parties even if a state-boundary question arises incidentally, but a direct claim by one State against another must be brought originally to this Court.

Real world impact

This ruling requires States that want official boundary disputes resolved to bring those claims directly to the Supreme Court instead of to district courts. It means a State’s separate claim against another State cannot be decided in a lower federal court, and courts may have to separate private title issues from state claims. The Court reversed the appeals court insofar as it gave relief to Louisiana against Mississippi and instructed that the District Court dismiss Louisiana’s complaint against Mississippi for lack of jurisdiction.