A unique situation is emerging in the prediction market: Donald Trump Jr. finds himself among the beneficiaries regardless of which of the two leading platforms—Kalshi or Polymarket—prevails in the competitive struggle. This is not just about portfolio investments, but about deep integration into the governance structure of both projects.
My analysis shows that the venture fund 1789 Capital, linked to Trump Jr., invested $300 million in a Polymarket funding round, after which the platform was valued at an impressive $21 billion. Meanwhile, he acquired a stake in Kalshi back in 2025, when the company's value stood at a modest $300,000. Since then, Kalshi's market capitalization has soared to $22 billion, making these investments among the most successful in the recent history of fintech.
An Advisor with a Dual Mandate
The key point that demands close attention is the official positions. In January 2025, Trump Jr. took a paid position as a strategic advisor at Kalshi. Just seven months later, he joined the advisory board of Polymarket, while 1789 Capital simultaneously made its first investment in that project.
This configuration creates an unprecedented conflict of interest. The president's son is effectively advising two direct competitors that are fighting for the same users and the same rules of the game in the market. In professional circles, this raises legitimate questions about ethics and the boundaries of what is acceptable.
At Kalshi, commenting on the situation, they emphasize that Trump Jr. is exclusively involved in marketing strategy and does not participate in regulatory engagement matters. However, as events in recent months show, his influence appears to extend far beyond PR activity.
The Regulatory Front
Most telling is his direct involvement in lobbying for the industry's interests. Trump Jr. personally persuaded Republican attorneys general to stop pressuring event-betting platforms. At a closed meeting in New Orleans, he claimed that the campaign against such platforms was initiated by traditional gambling companies seeking to protect their own business.
The situation has escalated to the limit: the CFTC this year filed lawsuits against nine states, attempting to block their efforts to regulate betting markets at the local level. Eight of these states are led by Democratic attorneys general. The most intense confrontation unfolded in Arizona, where criminal charges were filed against Kalshi in March for illegal gambling services.
Notably, the U.S. president has also publicly supported the industry. In May, he called betting markets a new financial product and voiced support for keeping CFTC oversight over them. Thus, his son's interests in the leading platforms have become an integral part of the broader debate over regulating the entire market.
My verdict: Trump Jr. has created a perfect investment structure—hedging at the level of ownership and influence. Regardless of the outcome of the regulatory struggle and competitive rivalry between Kalshi and Polymarket, his capital remains protected. This is a brilliant, albeit ethically questionable, example of how political capital is converted into financial guarantees.