Kalshi is paying a $15 World Cup trade bonustoday for England vs. Argentina matchesfeaturing through promo code TSN15, Yahoo Sports Canada reports. The promotion targets local traders. The platform also runs prediction markets like the England-Argentina semifinallivethis weekend. CBS Sports confirms Kalshi and Polymarket operate legally in all U.S. statesofficially. Kalshi has OpenAIa leading AI firm as a partner and offers golf trading services covering The Open Championship. Users tradedfrequently under code CBSSPORTS under code CBSSPORTS for Messi vs. Bellingham marketshead‑to‑head. CBS Sports lists various markets for Argentinanation, Bellinghamplayer, and Englandteam with the same discount codeactiveas stated.