Donald Trump Jr has ended his role as a paid adviser for the prediction market company Kalshi, the company announced on Thursday. Kalshi described the move as a mutual business decision.
This development follows a decision by Trump Jr's investment firm, 1789 Capital, to increase its investment in Polymarket, which is Kalshi's main competitor. Dani Lever, a spokesperson for Kalshi, stated, "We have mutually agreed to end Don’s advisory role after his firm’s significant investment in a competitor this past summer."
The announcement comes a week after Democrats gained control of both the House and Senate in the midterm elections. Democrats have indicated plans to investigate the Trump family’s investments, including their business relationships with prediction markets.
Donald Trump Jr became a paid "strategic adviser" for Kalshi in January 2025 and has been an investor in Polymarket since August 2025. Both companies have seen increased popularity and use over the past two years, and have reportedly received favourable treatment from the White House, with the Commodity Futures Trading Commission backing industry expansion.