Kalshi ends Donald Trump Jr advisory contract after his firm invests in rival Polymarket
KalshiECO
The prediction market operator said the decision was mutual following 1789 Capital's increased investment in Polymarket.
Kalshi has ended Donald Trump Jr’s advisory contract after his venture capital firm, 1789 Capital, increased its stake in rival prediction market platform Polymarket, Reuters reported Thursday, citing a company spokesperson.
The $40 billion prediction market operator said the decision was mutual, with discussions to terminate the agreement beginning in August after 1789 Capital led Polymarket’s latest funding round.
“We have mutually agreed to end Don’s advisory role after his firm’s significant investment in a competitor this past summer. We are grateful for his contributions in helping us market Kalshi to more customers,” the spokesperson said.
Trump Jr joined Kalshi as a strategic advisor in January 2025 and received an equity stake that the Financial Times reported was worth approximately $300,000 at the time.
The appointment followed the 2024 US presidential election, when prediction markets gained prominence after forecasting Donald Trump’s victory despite diverging from traditional polling.
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The contract termination comes as prediction markets face increased scrutiny from Democrats in Congress. Senator Elizabeth Warren has pledged to crack down on insider trading involving prediction market platforms.
Disclosure: This article was edited by Estefano Gomez. For more information on how we create and review content, see our Editorial Policy.
