Hain Celestial Group, Inc. v. Palmquist
Hain Celestial Group, Inc. v. Palmquist  
Podcast: U.S. Supreme Court Oral Arguments
Published On: Tue Nov 04 2025
Description: A case in which the Court held that a federal court cannot create jurisdiction over a lawsuit through its own erroneous ruling. When an appellate court reverses a district court's mistaken dismissal of a party who destroyed complete diversity, the jurisdictional defect never disappears and any trial verdict must be thrown out.