Michigan State court enters preliminary injunction requiring Kalshi to maintain geofencing to block Michigan residents and those within Michigan's borders from having access to its sports-event contracts

Preliminary injunctions of this kind are threshold rulings, not merits decisions, but they have historically been sticky: platforms enjoined at this stage tend to geofence promptly rather than risk contempt, which makes the near-term operational effect clear even as the litigation runs on. The pattern in comparable episodes is sequential: one state court order becomes a template, and enforcement or legislative efforts in other states with active sports-betting lobbies and established casino interests tend to follow, since sports-event contracts sit directly against state-licensed wagering revenue. The distinction worth drawing is between sports contracts, where states claim direct regulatory turf, and macro or political contracts, where the federal argument is cleaner; injunctions of this kind cut at the former while leaving the latter largely untouched. Follow-ons are the merits hearing, any appeal posture, and whether the platform's federal-court strategy against other state actions gains traction, since a split between state and federal venues is the established fault line here.