• Pendent-party jurisdiction has been a hotly debated subject, and was severely limited by the U.S. Supreme Court in Finley v. United States, 490 U.S. 545, 109 S.Ct. 2003 (1989). The concept is now codified in the supplemental-jurisdiction statute, and it applies to federal-question cases but not to diversity-jurisdiction cases. 28 USCA § 1367. Neither pendent-party jurisdiction nor supplemental jurisdiction may be used to circumvent the complete-diversity requirement in cases founded on diversity jurisdiction. See supplemental jurisdiction. [Cases: Federal Courts 23.]
pendent party jurisdiction
A court’s jurisdiction to adjudicate a claim against a party who is not otherwise subject to the court’s jurisdiction, because the claim by or against that party arises from the same transaction or occurrence as another claim that is properly before the court.