Mississippi Ex Rel. Hood v. AU Optronics Corp.
The Court ruled that a lawsuit filed by a state as the sole named plaintiff is not a "mass action" under a federal law that lets companies move big multi-party lawsuits from state to federal court, even if the state's claims benefit thousands of its residents.
Because Mississippi was the only plaintiff actually named in its price-fixing suit against LCD screen manufacturers, the case did not meet the 100-or-more-persons threshold Congress wrote into the law, and the case stays in state court.
How it got here: A federal trial court kept the case in state court under an exception; the Fifth Circuit disagreed with that exception, prompting the state to seek Supreme Court review.
The Case in Depth
What happened
Mississippi sued several manufacturers of liquid crystal display (LCD) screens, accusing them of forming an international price-fixing cartel. The state sought civil penalties and also restitution for LCD purchases made both by the state government itself and by ordinary Mississippi consumers who had bought the screens. The companies wanted the case moved out of state court.
The question before the Court
When Mississippi sued LCD makers as the only official plaintiff, did that count as a "mass action" letting the companies move the case to federal court?
Why it matters
State attorneys general who sue companies on behalf of their residents can keep those cases in state court, which is often seen as more favorable to plaintiffs, instead of having them automatically shifted to federal court. Companies facing state enforcement suits lose one path they had used to move such cases out of state courts.
What changes now
The case is sent back to the lower courts, which must now return Mississippi's lawsuit to Mississippi state court rather than let it proceed in federal court. This is a final ruling on how the mass-action provision should be read, so it settles the legal question nationally, though the state's underlying price-fixing claims will now be litigated on the merits in state court.
What this does not decide
The Court did not decide whether Mississippi's suit falls within CAFA's separate 'general public exception,' since it resolved the case without needing to reach that question. It also left open whether federal courts could use supplemental jurisdiction over small claims in a true mass action.
How the Court got there
The legal reasoning, step by step
- The Court focused on the text of the Class Action Fairness Act's 'mass action' provision, which allows removal to federal court when monetary claims of '100 or more persons' are proposed to be tried jointly because their claims share common questions of law or fact.
- The Court found that Congress knows how to include unnamed people in a headcount when it wants to, since another part of the same law explicitly counts 'persons (named or unnamed)' for class actions — but the mass-action provision leaves out that phrase, a sign the omission was deliberate.
- The Court read 'persons' and 'plaintiffs' in the mass-action provision as referring to the same group: the people who are actually named and proposing to try their claims together, mirroring how federal joinder rules use those same words.
- Treating unnamed residents who might benefit from a state's lawsuit as if they were 'plaintiffs' would also make a companion part of the same sentence unworkable, since that part limits federal jurisdiction to 'those plaintiffs' whose individual claims exceed $75,000 — a rule that could not sensibly apply to an unidentifiable pool of hundreds of thousands of residents.
- The Court also declined to import a separate legal practice of looking behind the named parties to find the 'real parties in interest,' reasoning that Congress showed no sign it wanted that practice applied to the mass-action headcount and, in fact, barred defendants from manufacturing a mass action by joining extra people themselves.
Doctrinal impact
Cases affected by this decision
Abrogates Louisiana ex rel. Caldwell v. Allstate Ins. Co. (536 F. 3d 418)
Rejects the Fifth Circuit's approach of counting unnamed real parties in interest as 'persons' or 'plaintiffs' under the mass action provision.