FanDuel joins DraftKings in launching sports event contracts, expanding into prediction markets despite looming regulatory challenges.

NBCUniversal is launching a new cable network Monday that will carry live sports events, including some that are currently exclusive to its streaming service Peacock.

By letting sports event markets loose nationwide, the Trump administration has brought online betting where it isn’t legal—such as Texas, California, Georgia and Utah—while threatening $14 billion in ...