Polymarket Returns to U.S. Market as Trump Jr. Joins Advisory Board

In late August 2025, prediction-market platform Polymarket announced that Donald Trump Jr. would join its advisory board alongside a strategic investment from his venture firm, 1789 Capital, reportedly worth tens of millions of dollars. Days later, on September 3, 2025, the Commodity Futures Trading Commission cleared Polymarket's return to U.S. operations, ending a multi-year absence that began after a 2022 CFTC enforcement action.

The close timing between Trump Jr.'s appointment and the regulatory green light drew scrutiny from ethics watchdogs, who noted a recurring pattern in which access to Trump family members appeared to coincide with favorable regulatory outcomes. The administration and Polymarket described the approval as merit-based, tied to compliance improvements rather than personal connections.

Trump Jr. also serves as a strategic adviser to Kalshi, a competing prediction-market platform, raising separate questions about whether his simultaneous roles with rival firms could invite antitrust or conflict-of-interest scrutiny. No formal action against either arrangement had been announced as of the reporting period.