Royal Canin U.S.A., Inc. v. Wullschleger
Issues
Does amending a complaint to omit a federal question after removal to federal court defeat federal question jurisdiction under 28 U.S.C. § 1331? Does a post-removal amendment restrict a federal district court from exercising supplemental jurisdiction over the remaining state-law claims?
This case asks the Supreme Court to determine whether the post-removal amendment of a complaint can defeat federal-question subject matter jurisdiction and preclude a district court from exercising supplemental jurisdiction over the remaining state law claims. On one hand, Royal Canin and Purina argue both that federal-question jurisdiction cannot be extinguished by amending a complaint and also that a district court can exercise supplemental jurisdiction even after the resolution of all federal claims. On the other hand, Anna Wullschleger and Gerald Brewer contend that the amended complaint determines federal-question jurisdiction, and a federal district court should not exercise supplemental jurisdiction when no federal claim remains in the lawsuit. The outcome of this case has heavy implications for forum manipulation and federalism.
Questions as Framed for the Court by the Parties
(1) Whether a post-removal amendment of a complaint to omit federal questions defeats federal-question subject matter jurisdiction pursuant to 28 U.S.C. § 1331; and (2) whether such a post-removal amendment of a complaint precludes a district court from exercising supplemental jurisdiction over the plaintiff’s remaining state-law claims pursuant to 28 U.S.C. § 1367.
Anastasia Wullschleger and Geraldine Brewer purchased prescription pet food from Royal Canin and Purina under the impression that the companies formulated the food to treat their pets’ health and disease problems. Brief for Respondents in Opposition, Anastasia Wullschleger at 4.
The authors would like to thank Professor Maggie Gardner for her guidance and insights into this case.
Additional Resources
- Kimberly Strawbridge Robinson, Dog Food Suit Location Dispute to Get US Supreme Court Review, Bloomberg (April 29, 2024).
- Richard S. Davis, Master of Its Choice of Forum?: Supreme Court to Decide if a Plaintiff May Compel Remand of a Removed Case by Voluntarily Dismissing Its Federal Claims, Foley & Lardner, LLP (May 22, 2024).