“[T]he principal distinction between claim preclusion and issue preclusion is … that the former forecloses litigation of matters that have never been litigated. This makes it important to know the dimensions of the ‘claim’ that is foreclosed by bringing the first action, but unfortunately no precise definition is possible.” Charles Alan Wright, The Law of Federal Courts § 100A, at 723 (5th ed. 1994).
claim preclusion
claim preclusion. See RES JUDICATA.