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Supplemental Jurisdiction Over Permissive Counterclaims And Set Offs: A Misconception, Douglas D. Mcfarland

Mercer Law Review

In the years prior to 1990, courts extended federal jurisdiction over joined claims and parties in an orderly system. Pendent jurisdiction allowed a plaintiff to join a state law theory of recovery to a federal question theory in the complaint when both arose from a "common nucleus of operative fact."Ancillary jurisdiction allowed a defendant to join a state law claim to a federal claim in a civil action when both arose from the same "transaction or occurrence." Since a compulsory counterclaim arose from the same "transaction or occurrence" and a permissive counterclaim did not, courts had no difficulty in holding …