Hain Celestial Group v. Palmquist — Can a Jurisdiction Error Be "Cured" After Final Judgment?

Full audio of the Supreme Court oral argument in Hain Celestial Group v. Palmquist (No. 24-724), argued November 4, 2025. In this case, the Justices examine whether a federal appellate court must vacate a district court's final judgment when it later concludes the case was improperly removed because a non-diverse defendant was wrongly dismissed at the outset—pitting strict jurisdictional rules against the need for finality in complex product-liability litigation. Hear counsel and the Court test the limits of Caterpillar v. Lewis, diversity jurisdiction, and what happens when federal courts try to fix their mistakes after the fact.

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