*1 Before EDMONDSON, DUBINA and BARKETT, Circuit Judges.
PER CURIAM:
This is an appeal by class plaintiffs ("Appellants") of an order denying their motion for a preliminary and permanent injunction against Locator of Missing Heirs, Inc. ("Appellee"), a non-party to the pending Antitrust action brought by Appellants against several manufacturers of infant formula. The district court denied Appellants' motion for lack of subject matter jurisdiction. We affirm.
Appellants say the district court has subject matter
jurisdiction over this matter involving a non-party under either
Federal Rule of Civil Procedure 23(d) or the All Writs Act, 28
U.S.C. § 1651.
[*]
The district court's conclusion that it lacked
subject matter is a question of law reviewed de novo. Sea Vessel,
[*]
Appellants propose the All Writs Act as a basis for subject
matter jurisdiction for the first time on appeal. Appellants
never raised this issue at trial and are foreclosed from raising
it now. Singleton v. Wulff,
The Federal Rules of Civil Procedure do not create federal
jurisdiction, see Owen Equipment & Erection Co. v. Kroger, 437 U.S.
365, 368-370 & n. 7,
AFFIRMED.
