Donald Trump Jr. ends role at prediction company Kalshi
NEW YORK: Prediction platform Kalshi has ended its collaboration with Donald Trump Jr., citing the financial links between the president’s son and rival firm Polymarket.
The prediction platform Kalshi has ended its collaboration with Donald Trump Jr. The decision comes after a significant investment Trump Jr.'s firm made in a rival company, Polymarket, in the summer of 2026. Kalshi's spokesperson expressed gratitude for Trump Jr.'s contributions to marketing the platform to more customers. Trump Jr., who joined Kalshi as a strategic adviser in January 2025, is one of multiple business ventures by the Trump family since his presidency began in 2025.
In August 2026, Polymarket announced that Trump Jr. joined their advisory board following an investment by 1789 Capital, of which he is a partner. Kalshi and Polymarket are two major players in the growing US prediction market, where customers can bet on sports events, elections, and financial markets. New York state recently sued Kalshi, accusing it of running an illegal gambling operation, citing state gambling laws that protect children and combat gambling addiction.
Kalshi faces similar legal challenges in multiple US states, with gaming regulators issuing cease-and-desist orders or filing lawsuits accusing the platform of operating an unlicensed gambling business.
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