Kalshi Severs Ties with Donald Trump Jr. Citing Investment in Competitor Polymarket
Kalshi mutually agreed to end Donald Trump Jr.'s advisory role, citing his firm’s significant investment in a competitor this past summer. This follows the Midterm Elections after the Maga Movement lost control of both the House of Representatives and the Senate to the resurgent Democrats. Both Kalshi and Polymarket have been at the centre of a number of alleged insider trading scandals.
SCCG Take — The split shows prediction market operators actively mitigating political risk exposure as Democratic oversight intensifies. This will influence how firms balance high-profile affiliations against regulatory and competitive vulnerabilities.
Kalshi has mutually agreed to end Donald Trump Jr.'s advisory role. The announcement on Thursday follows the midterm elections in which Democrats regained control of both the House of Representatives and the Senate, curtailing the influence of President Trump and the MAGA movement.
The company, founded in 2018 by Tarek Mansour and Luana Lopes Lara, brought Trump Jr. on at the start of 2025 after he praised its accurate forecasting of the 2024 presidential election outcome. He received US$300,000 of equity in the deal. Kalshi is now valued at US$40 billion.
According to iGaming Future, the firm attributed the split to "his firm’s significant investment in a competitor this past summer." Trump Jr. is a partner in 1789 Capital, a major investor in Polymarket, and serves as an advisor to that platform as well. He often works in tandem with Eric Trump and Jared Kushner.
Strategic Positioning Ahead of Congressional Probes
The decision is viewed as a calculated distancing move before expected Democratic-led investigations into alleged corruption and ties between the Trump administration and corporate America. Reporting indicates Mr. Trump has made around US$3 billion from cryptocurrency and prediction market dealings in two years of his second term, a figure unprecedented in 250 years of U.S. history.
Both Kalshi and Polymarket have faced allegations of insider trading tied to the timing of the U.S.-Israeli air strike against Iran’s nuclear facilities and the sequestration of Nicolás Maduro by U.S. Navy Seals. Kalshi has sought to differentiate itself, stating "We don’t do murder." Lawmakers including Republican Senator John Curtis, Democratic Senator Elizabeth Warren, and Jamie Raskin — who is expected to chair the U.S. House Judiciary Committee — have signaled they will pursue accountability on conflicts of interest. Raskin told The Financial Times: "We’ve seen the most breathtaking and outrageous conflicts of interest pervade the Trump administration, beginning at the top."
Where the Risk Lies
The severance highlights specific risks for prediction market operators entangled with politically exposed figures at a moment of shifting congressional power. Such associations can accelerate regulatory and investigative exposure even when framed as mutual. Platforms must now assess whether maintaining or cutting these links better positions them for the compliance demands and competitive pressures that lie ahead.
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