Montana Municipal Interlocal Authority v. Montana State Fund
6:25-cv-00035
D. Mont.Jun 27, 2025Background
- Montana Municipal Interlocal Authority (MMIA), a self-insurance workers’ compensation pool for Montana cities and towns, alleged that Montana State Fund (MSF), through broker Marsh McLennan Agency, offered unsustainably discounted rates to certain municipalities, purportedly undercutting MMIA's business.
- MMIA claimed this practice would result in financial loss for MSF and harm other MSF policyholders, ultimately aiming to monopolize Montana’s workers’ compensation insurance market.
- The lawsuit initially filed in state court was removed to federal court by MSF.
- MMIA brought claims under the Sherman Antitrust Act and Robinson-Patman Act, along with state law claims, seeking a temporary restraining order against MSF.
- Defendants moved to dismiss, arguing that the McCarran-Ferguson Act barred federal antitrust claims because MSF’s actions are regulated by state law.
- The court held a hearing on these motions and considered the applicability of federal law to the issues raised.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Does the McCarran-Ferguson Act prohibit Sherman/Robinson-Patman claims? | MSF is not sufficiently regulated by state law, so federal claims should proceed | MSF’s worker compensation insurance is fully regulated by Montana law, barring federal claims | Yes; McCarran-Ferguson Act bars federal claims |
| Is MSF’s rate-setting/sales conduct covered by Montana insurance law? | MSF’s predatory pricing/solicitation is not regulated by Montana law | Montana law regulates MSF's rates and solicitation, covering alleged conduct | Yes; Montana law covers these activities |
| Should the court address any remaining state law claims? | Not directly specified | State/federal claims must rise and fall together | No; state claims dismissed for lack of jurisdiction |
| Should a TRO be granted against MSF? | MSF’s actions harm MMIA and warrant injunctive relief | Court lacks jurisdiction due to above findings | No; motion denied for lack of jurisdiction |
Key Cases Cited
- United Mine Workers of Am. v. Gibbs, 383 U.S. 715 (federal claims dismissed before trial should result in dismissal of state law claims for lack of pendent jurisdiction)
- Navarro v. Block, 250 F.3d 729 (pleading and 12(b)(6) dismissal standards in the Ninth Circuit)
- Mendiondo v. Centinela Hospital Med. Ctr., 521 F.3d 1097 (evaluating sufficiency of complaint under Rule 12(b)(6))
- Balistreri v. Pacifica Police Dep’t, 901 F.2d 696 (grounds appropriate for 12(b)(6) dismissal)
- Feinstein v. Nettleship Co. of Los Angeles, 714 F.2d 928 (Ninth Circuit application of McCarran-Ferguson Act to antitrust claims in insurance)
- Turner v. City and County of San Francisco, 788 F.3d 1206 (pleading standards on a motion to dismiss)