
Kalshi said it mutually ended Donald Trump Jr.’s advisory contract after 1789 Capital became a major investor in rival Polymarket.
Kalshi has ended Donald Trump Jr.’s advisory contract after his venture capital firm, 1789 Capital, increased its stake in rival Polymarket. A Kalshi spokesperson said the decision was mutual.
The spokesperson said talks about ending the role began in August, after 1789 Capital led Polymarket’s latest funding round. The spokesperson described Kalshi as a $40 billion startup.
Trump Jr. became a strategic advisor to Kalshi in January 2025. The Financial Times reported at the time that he received a stake worth $300,000.
Prediction markets face the prospect of increased scrutiny from Democrats in Congress. Senator Elizabeth Warren has vowed to crack down on insider trading on the platforms.
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