Opinion Summary: Royal Canin U.S.A. v. Wullschleger | Date Decided: 1/15/25 | Case No. 23-677

Case Info: Royal Canin U.S.A. v. Wullschleger | Date Decided: 1/15/25 | Case No. 23-677 Link to Docket: Here . Questions Presented: Whether such a post-removal amendment of the complaint defeats federal-question subject-matter jurisdiction. Whether such a post-removal amendment of the complaint precludes a district court from exercising supplemental jurisdiction over the plaintiffs remaining state-law claims pursuant to 28 U.S.C. § 1367. Holding: When a plaintiff amends her complaint to delete the federal-law claims that enabled removal to federal court, leaving only state-law claims behind, the federal court loses supplemental jurisdiction over the state claims, and the case must be remanded to state court. Result: Affirmed. Voting Breakdown: Justice Kagan delivered the opinion for a unanimous Court. Link to Opinion: Here . Oral Advocates: For petitioners: Katherine B. Wellington, Boston, Mass. For respondents: Ashley C. Keller, Chicago, Ill. Website Link to Oral Argument: Here . Apple Podcast Link to Oral Argument: Here.