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Trump Jr. Joins Polymarket Board as 1789 Capital Invests in Prediction Market

The move signals a regulated U.S. comeback effort after a QCEX acquisition, with federal probes closed in July.

Overview

  • Polymarket announced Donald Trump Jr. has joined its advisory board as 1789 Capital made a strategic investment, with terms undisclosed.
  • Reports from Axios and Reuters indicate a commitment in the tens of millions of dollars following roughly 18 months of discussions.
  • Polymarket’s acquisition of QCEX gives it control of a CFTC‑licensed exchange and clearinghouse, establishing infrastructure for U.S. access.
  • The DOJ and CFTC ended their investigations into Polymarket in July 2025, removing a major regulatory overhang on expansion plans.
  • Trump Jr. also serves as an advisor to rival Kalshi, raising questions about dual roles, while Polymarket reports about $6 billion in H1 2025 trades and a partnership with X.