According to the latest reports, 1789 Capital, the firm with Donald Trump Jr. as a partner, has invested tens of millions of dollars into Polymarket, the leading blockchain-based prediction market. Trump Jr. has also joined Polymarket’s advisory board, as it looks to expand in the US and into crypto.
Polymarket’s founder and CEO, Shayne Coplan, called this a “big milestone” that comes as the company closes out long-running US regulatory investigations and makes acquisitions that soften its return to the American market.
Regulatory Wins Anchor the Move
The investment from 1789 Capital avails itself at a needed time. Based on available data, earlier this summer, the Department of Justice and the CFTC closed their investigations into Polymarket, removing a major barrier to its US operations.

Now, this new clearance, together with Polymarket’s acquisition of QCEX, a CFTC-regulated derivatives exchange, Polymarket can now potentially resume US operations.
Also read: Trump Jr. Buys Into Bitcoin-Heavy Startup: Trendsetter or Red Flag?
Behind the Headlines: A Deeper Look
Polymarket, launched in 2020 by Shayne Coplan, allows users to bet on real-world outcomes. From policy decisions to court rulings. According to sources, it has already seen $6 billion in trades in the first half of 2025 alone. The platform also saw $8 billion in bets during the 2024 US election cycle, more than major sportsbooks.
For 1789 Capital, this investment aligns with the goal of investing in companies that fit its theme of “American dynamism” and “American exceptionalism,” a narrative reinforced by its founders and big-name backers.
Donald Trump Jr.’s involvement with Polymarket is interesting given his earlier advisory role at Kalshi, another prediction market platform.
Why This Matters Now
The timing of this deal is interesting for several reasons. Under the current US administration, the policy and financial environment is becoming more favorable to crypto platforms like Polymarket.
Polymarket has navigated the regulatory hurdles and is now in a position to capitalize on its “unicorn” valuation, closer to $1 billion; and its track record of generating billions in bets across global events.
Trump Jr.’s advisory role is expected to bring more visibility to the platform, especially to conservative investment networks and regulatory observers.

Conclusion
Based on the latest research; a new chapter opens for Polymarket as 1789 Capital invests millions and brings Donald Trump Jr. onto the board.
Now with regulatory clarity and potential for US re-entry. Polymarket is ready to stand as a top shaker in the prediction market space.
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Summary
Donald Trump Jr.’s venture firm 1789 Capital has invested tens of millions into Polymarket and he has joined its advisory board. This follows the closure of DOJ and CFTC probes and Polymarket’s acquisition of a CFTC-regulated exchange, setting the stage for US re-entry. Polymarket is valued near $1 billion with over $6 billion in 2025 trades.
Glossary
Prediction market – A trading platform where users bet on the likelihood of future events; often used to measure real-time public opinion.
Advisory board – A group of external advisors to the company.
CFTC – U.S. Commodity Futures Trading Commission, regulates derivatives and futures.
DOJ – U.S. Department of Justice, enforces federal laws and oversees investigations.
Unicorn – A private company valued at $1 billion+
FAQs for Donald Trump Jr joins Polymarket
Who is Donald Trump Jr. in this context?
Donald Trump Jr. is a partner at 1789 Capital, a VC firm that backs conservative and American-focused companies. In this deal, he has joined Polymarket’s advisory board.
How much did 1789 Capital invest in Polymarket?
Tens of millions, as reported by Reuters and others.
Why is regulatory clearance important?
Polymarket has cleared previous legal hurdles. The DOJ and CFTC ending their investigations and QCEX acquisition gives the platform a green light to potentially serve US users.
What is Polymarket’s status now?
Near unicorn, seeking growth with a valuation over $1 billion, fueled by strong trade volumes and institutional interest.