Kalshi and Donald Trump Jr. end his advisory role, citing Polymarket investment
Summary
- Kalshi and Donald Trump Jr. mutually agreed to end his advisory role with the prediction market platform, the company said.
- Kalshi attributed the split to 1789 Capital, the firm where Trump Jr. is a senior partner, investing about $300 million in rival Polymarket earlier in 2026.
- Trump Jr. joined Kalshi as an adviser in 2025 and joined Polymarket as an adviser seven months later.
- 1789 Capital's Polymarket investment was part of a larger $1 billion fundraiser valuing Polymarket at $21 billion.
Reactions
- Kalshi spokesperson Jacki McGavick said the company was grateful for Trump Jr.'s contributions in marketing Kalshi to more customers.
- A person close to Trump Jr., granted anonymity, confirmed that ending the advisory role was a mutual decision.
- It was reported that Trump Jr.'s exit comes as Democrats prepare to target companies backed by the Trump family, including prediction market platforms.
Timeline newest first
Kalshi said on a Thursday that it and Donald Trump Jr. had mutually agreed to end his advisory role with the company.
Sources newest first
- Kalshi ditches Trump Jr. as advisor; CEO admitted "optics" weren't good
arstechnica.com· 26h
Ars Technica reports that Donald Trump Jr. agreed to end his advisory role at prediction market Kalshi after his firm, 1789 Capital, invested $300 million in competitor Polymarket. CEO Tarek Mansour admitted an "optics issue," while Senators Warren and Merkley cite conflicts of interest, and the CFTC is suing states and reportedly preparing charges against Kalshi.
Kalshi Ended Donald Trump Jr.’s Advisory Contract Over His Polymarket Role247wallst.com· 32h
Omor Ibne Ehsan's 247wallst.com article reports that Kalshi, the $40 billion prediction-market startup, ended Donald Trump Jr.'s advisory contract on November 12, 2026, saying his firm 1789 Capital made a significant investment in rival Polymarket, talks that began in August. It also flags Robinhood, Kalshi's largest distribution partner, as the listed company most exposed to Democrats' promised looks at prediction markets and the Trump family.
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The Guardian reports that Donald Trump Jr has left his paid advisory role at prediction market Kalshi, announced a week after Democrats won both chambers in the midterms. Kalshi calls it a mutual decision following his firm 1789 Capital's increased investment in rival Polymarket, and Democrats plan to investigate the Trump family's investments.
Donald Trump Jr. ends Kalshi advisory rolePolitico reports that Kalshi says it and Donald Trump Jr. mutually agreed to end his advisory role, attributing the split to his firm 1789 Capital's roughly $300 million investment in Kalshi's rival Polymarket. He had joined Kalshi as an adviser in 2025 and later Polymarket, and his exit comes as Democrats prepare to target Trump-family-backed companies.
Donald Trump Jr. exits advisory role at Kalshi prediction marketcnbc.com· 2d
CNBC reports Donald Trump Jr. has left his strategic advisor role at prediction market Kalshi, which he took in January 2025, and now advises rival Polymarket while his firm 1789 Capital holds a stake in it. A Kalshi spokesperson calls the split mutual and a conflict of interest, its CEO had flagged an optics issue, and the article expects Democrats, newly in control of Congress, to crack down on the industry.
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