Kalshi is paying a $15 World Cup trade bonuscurrently for England vs. Argentina matchesfeaturing through promo code TSN15, Yahoo Sports Canada reports. The promotion targets interested traders. The platform also runs prediction markets like the England-Argentina semifinalopenupcoming. CBS Sports confirms Kalshi and Polymarket operate legally in all U.S. statesformally. Kalshi has OpenAIthe AI leader as a partner and offers golf trading services focused on The Open Championship. Users tradedfrequently under code CBSSPORTS under code CBSSPORTS for Messi vs. Bellingham marketshead‑to‑head. CBS Sports lists multiple markets for Argentinaside, Bellinghamplayer, and Englandside with the same promotion codevalidas stated.