Saving this one — a genuinely important regulatory battle unfolding in prediction markets right now. Kalshi has sued Illinois over Senate Bill 3019, a law taking effect July 1 that reclassifies its sports event contracts as state-regulated gambling, complete with licensing fees, a 15% tax, geofencing, and criminal penalties for non-compliance.

Kalshi's defense centers on federal preemption: as a CFTC-regulated exchange, it argues sports event contracts are derivatives under federal law, not state gambling products, and that Illinois's rules conflict with the Supremacy Clause.

Useful companion read alongside the Minnesota and Kentucky disputes — this whole "bet vs. derivative" question seems headed for a much bigger resolution soon.

Source: https://polypunter.com/kalshi-files-federal-lawsuit-challenging-illinois-rules-on-sports-event-contracts/