The Commodity Futures Trading Commission issued two measures Friday to define event contracts as swaps and exclude casino-style gambling from that definition. The proposed rule covers contracts tied to sports, politics, cultural events and weather. The gambling exclusion is an interim final rule effective immediately upon publication, and both measures have 30-day public comment windows. Chairman Michael Selig said event contracts fall within the CFTC's exclusive jurisdiction, while multiple states have sued prediction-market operators alleging illegal gambling. A court split over whether event contracts qualify as federally regulated swaps has drawn the Supreme Court's attention.