CME Group is pushing the boundaries of retail trading with its FanDuel venture. Crain’s finance reporter Mark Weinraub discusses with host Amy Guth.Plus: Trump calls Chicago a "killing field" as report says Pentagon drew up National Guard plan, double-digit rate hikes in store for Illinois ACA plans next year, FTC says GTCR's Surmodics buy would harm medical device market and Chicago business schools lean into AI as job market evolves.