Whether Phillips had standing to challenge Kansas' personal jurisdiction over absent, nonresident plaintiff class members.
Holding
Yes. Phillips could assert the jurisdictional challenge because it sought to protect its own concrete interest in obtaining a judgment that would bind all class members.
Reasoning
Phillips was not merely invoking the absent plaintiffs' due-process rights. If Kansas lacked authority to bind particular class members, Phillips could be bound by an adverse class judgment while those members would remain free to bring later individual suits. A judgment entered without jurisdiction over an absent party would not necessarily have res judicata effect against that party in another court.
That risk gave Phillips an immediate and personal stake in whether every class member would be bound. A class-action defendant has a legitimate interest in the mutuality and finality of the judgment, regardless of whether it ultimately wins or loses on the merits. ამიტომ Phillips had standing to raise the issue.