MEMORANDUM OPINION AND ORDER
By instruction of the United States Supreme Court,
Marrese v. American Academy of Orthopaedic Surgeons,
— U.S. -,
Our task is an exercise in extrapolation because, of course, the Illinois courts never address issues pertaining to exclusively federal lawsuits. Nevertheless, the Supreme Court instructs that under the
*920
full faith and credit statute, 28 U.S.C. § 1738, we must “rely in the first instance on state preclusion principles to determine the extent to which an earlier state judgment bars subsequent litigation.”
Marrese,
Illinois courts adhere to the familiar rule of res judicata, or “estoppel by verdict,” that:
a final judgment rendered by a court of competent jurisdiction on the merits is conclusive as to the rights of the parties and their privies, and, as to them, constitutes an absolute bar to a subsequent action involving the same claim, demand or cause of action____ The doctrine of res judicata, in all cases where the second suit is upon the same cause of action and between the same parties or their privies as the former action, extends not only to the questions actually litigated and decided, but to all grounds of recovery or defense which might have been presented.
People v. Kidd,
We evaluate these reasons by a two-step analysis. First, considering the “same claim, demand or cause of action” requirement, we analyze whether under Illinois law the original judgment would have been res judicata if plaintiffs had subsequently filed a state law antitrust suit in state court. If not, because of differences in the theories or proof involved, then a fortiori, this suit is not barred. But if, as we conclude, such a suit would have been barred, then the second question, considering the state’s lack of jurisdiction to entertain the latter claim, is whether a judgment on the merits in a state antitrust suit would bar a subsequent federal antitrust suit. If not, then by extension, the prior judgment here does not bar this suit. We believe that by so hypothesizing an intermediate state antitrust suit, we can most clearly determine the full faith and credit to be given the judgment of the Circuit Court of Cook County.
The first question, whether a claim alleging violations of the Illinois antitrust laws would be barred by plaintiffs’ state court suits, depends on whether antitrust allegations would be considered the same “claim, demand or cause of action” as the claims raised by the state court suits. Illinois courts have recited various standards for determining whether there is identity of cause of action. The Illinois Supreme Court has stated that “[a] decree operates as
res judicata
of the claim presented in a later action when the facts and relief sought ‘are substantially the same.’ ”
Housing Authority for LaSalle v. YMCA of Ottawa,
We find it less useful to attempt to harmonize the boilerplate language of these standards than to see how Illinois courts deal with particular situations. We find two consistently guiding principles under which we can examine this case.
On the one hand, the Illinois courts do not allow a party to create a new cause of action out of the same basic act or transaction merely by alleging a different legal theory than alleged in a prior suit. In
Pratt v. Baker,
Similarly, in
Morris v. Union Oil of California,
On the other hand, where the plaintiff brings a suit against the defendant and claims that he is entitled to recover for a wrong committed by the defendant in a separate and distinct act or transaction from the wrong complained of in the first suit, the Illinois courts do not let the first suit operate as a bar to the second suit. In
Turzynski v. Liebert,
In the instant case the various claims arise from a single act, denial of membership, allegedly committed by defendant. In plaintiffs’ state court complaints and antitrust complaint (which we take for these purposes to resemble closely our hypothetical complaint alleging violations of Illinois antitrust law,
see Marrese,
We acknowledge that to state a cause of action under the Illinois antitrust laws, plaintiffs would need additional factual allegations, such as of the Academy’s anti-competitive effect, which were not required for their state court complaints. However, the antitrust evidence was available to plaintiffs when they filed their first suit. Under Illinois principles of
res judicata,
their failure to utilize an antitrust theory in their first action would prevent a second state court action based on that theory. The court in
Prochotsky v. Union Central Life Insurance Co., 2
Ill.App.3d 354,
Hence, Illinois law bars subsequent suits based on the same operative facts as an earlier suit. We find that a state antitrust action would have been based on the same operative facts as the plaintiffs’ original actions and thus would have been barred.
Our determination is consistent with Illinois policy regarding relitigation of actions between the same parties. In
Morris,
the court stated that
res judicata
is based upon the “public necesity that disputes be resolved and ended. It is a fundamental principle of procedure that in law and equity a party must set out in his pleadings all of the grounds for recovery he may have.”
We note, parenthetically, that plaintiff Treister alleges in his federal complaint that he reapplied for membership and awaits a decision. If a second rejection has occurred, that would be a subsequent fact that might change the res judicata analysis.
Having determined that a state antitrust suit would have been barred, we turn to consider the more abstract question of whether a judgment in such a suit, and by extension the prior judgment here, would bar this suit. In other words, does the existence of an exclusive federal forum created by a federal statute, even where a parallel state statute provides a state forum for the same type of claim, render the principle of res judicata inapplicable?
We do not believe the answer is found in the “court of competent jurisdiction” language of the Illinois rule of
res judicata.
The plain meaning of that language, and the understanding evidenced by Illinois courts, is merely that the prior court must have been competent to entertain the prior suit in order for its judgment in that suit to have preclusive effect in a subsequent suit.
See People v. Kidd,
Plaintiffs primarily rely on the “might have been presented” language of the rule, contending that since they could not present their Sherman Act claim in state court, res judicata cannot bar it. Defendant maintains on the other hand that this language expands, rather than contracts, the range of cases to which res judicata applies, and should include this case where plaintiffs raised a “claim, demand or cause of action” concerning the membership denial, and could have brought an antitrust count as an alternative ground to recovery either under state law or under federal law (with the other grounds pled as pendent state claims).
The courts of Illinois have applied the “might have been presented” language in cases without relevance here, as, for instance, where a party was not permitted to intervene in a prior suit and hence could not present the issue upon which it later filed suit,
see Inter-Insurance Exchange v. Truck Insurance Exchange,
More to the point, as the Supreme Court noted in
Marrese,
A Co. brings an action against B Co. in a state court under a state antitrust law and loses on the merits. It then commences an action in a federal court upon the same facts, charging violations of the federal antitrust laws, of which the fed *924 eral courts have exclusive jurisdiction. The second action is not barred.
The question is whether this rule reflects the law of Illinois.
Illinois courts have not cited to this section of the Restatement of Judgments, but have widely relied on portions of the Restatement concerning other aspects of
res judicata
law. For instance, Illinois courts have cited its statement of the policy underlying
res judicata
doctrine,
see Raper v. Hazelett & Erdal,
Several known principles of Illinois law lend some support to this conjecture.
Res judicata
is not a bar where the court which entered the prior judgment lacked jurisdiction over the matter,
see People v. Kidd,
Furthermore, in our view, the cases of
Barton v. Southwick,
These holdings are pertinent in the following respects. First, once a matter is raised in any form in a court with jurisdiction over it, any issues decided are precluded from relitigation. Hence, all issues decided by the Circuit Court of Cook County, such as the issue of economic necessity, cannot be relitigated in this antitrust suit. Had plaintiffs pursued the hypothesized state antitrust action, it might have precluded consideration of virtually all relevant issues. Then, defendants would not have been made twice to proceed through discovery and a trial on the merits of each issue. But second, plaintiffs’ interpretation of the “might have been presented” rule, as a restriction on the scope of res judicata, is supported. A claim must be able to have been brought in the same form, in order for a party to a prior action to be barred by failure to raise it. The implication is that since a Sherman Act claim cannot be raised, except in federal court, a state court action cannot bar it.
Accordingly, we conclude that Illinois law does not bar this suit. We note that the Ninth Circuit, applying
Marrese
and analyzing California law, reached the same result.
See Eichman v. Fotomat Corp.,
