Mcdonald v. City West Branch

The question presented in this § 1983 action is whether a federal court may accord preclusive effect to an unappealed arbitration award in a case brought under that statute. In an unpublished opinion, the Court of Appeals for the Sixth Circuit held that such awards have preclusive effect. We granted certiorari, 464 U.S. 813 (1983), and now reverse.