Whether a federal court may dismiss a diversity action, years after filing, for lack of subject-matter jurisdiction based solely on the plaintiff's inability to produce admissible evidence of the citizenship of nonparty assignors, absent any finding—or evidence—of a collusive or improper assignment under 28 U.S.C § 1359

Whether a federal court may dismiss a diversity action, years after filing, for lack of subject-matter jurisdiction based solely on the plaintiff’s inability to produce admissible evidence of the citizenship of nonparty assignors, absent any finding—or evidence—of a collusive or improper assignment under 28 U.S.C § 1359. ii PARTIES TO PROCEEDING Petitioner Gore and Associates Management Company, Inc. (“Gore”) was the appellant in the court below. Respondents are SLSCO Ltd. (“SLSCO”) and Hartford Fire Insurance Company (“Hartford”), and were the appellees in the court below. iii CORPORATE DISCLOSURE Petitioner Gore and Associates Management Company, Inc. is a non-governmental corporation duly incorporated in the State of North Carolina. Gore does not have a parent corporation, and no publicly held company owns 10% or more of the company’s stock.