452 U.S. 394 (1981)
The case of Federated Department Stores v. Moitie is a seminal Supreme Court decision that addresses the reach and rigidity of the doctrine of res judicata in the context of civil litigation.
Does the doctrine of res judicata bar a plaintiff from relitigating a claim by refiling in state court, even if the prior federal court decision may have been erroneous?
The doctrine of res judicata bars subsequent claims by the parties or their privies based on the same cause of action upon which the court has already rendered a final judgment on the merits.
Yes, the Supreme Court held that res judicata applies, barring Moitie from relitigating the claim, despite the possibility that the previous judgment may have been erroneous.
Federated Department Stores v. Moitie is significant because it reinforces the foundational civil procedure principle that judgments must be final, irrespective of their perceived correctness, to maintain order and predictability in the legal system. Law students must appreciate res judicata's role in protecting the court's judgments from endless litigation and the doctrine's interplay with jurisdictional and procedural considerations. This case serves as a reminder that procedural rules cannot be circumvented by simply changing forums after an adverse judgment.