Underdog sued the state of Missouri on 8 November, and the same day Crypto.com and Novig asked the federal courts there to freeze the state’s crackdown while their cases run, bringing the number of prediction-market exchanges suing Missouri to four.

Underdog Exchange DCM, Inc. filed in the Western District of Missouri in Jefferson City, in a case assigned to Judge Beth Phillips, and lodged a preliminary-injunction request the same evening, according to the court’s docket for Underdog Exchange DCM, Inc. v. Hanaway. It is the eighth state Underdog has sued since 8 September, after Ohio, Massachusetts, Wisconsin, New Mexico and Washington, then Connecticut on 15 September and Tennessee on 13 October. In every one the exchange has…