Kalshi ends Trump Jr. advisory role after 1789 Capital raises Polymarket stake

Kalshi drops Trump Jr. advisory role

Kalshi, a platform for crypto-based event betting, has ended its advisory arrangement with Donald Trump Jr., according to reports on 13 November 2026. The move followed an increased investment by his venture firm, 1789 Capital, in Polymarket, a competitor to Kalshi.

The reports did not specify the size of the investment or the date it was made. They also did not say whether Kalshi gave a reason beyond the link to a rival platform.

Donald Trump Jr. had been providing consulting services to Kalshi. The reports describe the arrangement as an advisory role, without giving its terms or duration.

Neither Kalshi nor 1789 Capital had commented publicly on the end of the arrangement at the time of the reports, according to the same accounts.

What is still open

It is not known whether the advisory relationship was terminated by Kalshi, by Trump Jr., or by mutual agreement. The reports do not say whether 1789 Capital will keep its stake in Polymarket or increase it further.

Polymarket and Kalshi both operate prediction markets, where users trade on the outcome of events. The reports did not address how the two platforms compete or whether the investment affects that competition.