Kalshi announces new guardrails to preemptively block politicians, athletes, and others from trading in their relevant markets (Nathan Bomey/Axios)

Nathan Bomey / Axios: Kalshi announces new guardrails to preemptively block politicians, athletes, and others from trading in their relevant markets — Prediction market Kalshi plans to block athletes, coaches and officials from betting on their sports and to block political candidates from trading on their campaigns, Axios has learned.