“Respondent KalshiEx LLC (‘LLC’), knowing that review by this Court was imminent, rushed to launch its election betting contracts on the same day the District Court issued a memorandum opinion, before Appellant had an opportunity for the Commodity Futures Trading Commission (‘Commission’ or ‘CFTC’) to file this motion for a stay pending appeal of the serious legal issues and public interests at stake,” the CFTC said in its filing.