Business · Companies · 34 mins ago
Kalshi ends Donald Trump Jr's advisory role after Polymarket investment
Kalshi and Donald Trump Jr have ended his advisory role at the US prediction-market company by mutual agreement.
The split followed 1789 Capital's increased investment in Polymarket, a rival platform; Trump Jr is involved with the investment firm.
Trump Jr became a strategic adviser to Kalshi in January 2025, and was given a stake in the company.
Prediction markets let people trade contracts tied to the outcomes of future events, and gained prominence during the 2024 US election.
The platforms are drawing political scrutiny over their business ties and concerns about insider trading.
Democrats in Congress have said they plan to examine the Trump family's investments and business relationships with the platforms.
Kalshi ended Donald Trump Jr’s paid advisory role after 1789 Capital, a firm in which he is involved, increased its investment in rival Polymarket.
The company said both sides agreed to end the role.
Trump Jr was named a strategic adviser to Kalshi in January 2025.
Handelsblatt reported that Trump Jr became an investor in Polymarket in August 2025.
The decision comes as Democrats have said they will examine the Trump family’s investments and business ties to the prediction platforms.
- Who
- Kalshi and Donald Trump Jr agreed to end his advisory role.
- What
- Kalshi ended Trump Jr’s paid advisory contract after 1789 Capital increased its investment in Polymarket.
- When
- The agreement was announced on Thursday; the articles were published on November 12 and 13, 2026.
- Where
- Not stated.
- Why
- 1789 Capital, in which Trump Jr is involved, increased its investment in Kalshi competitor Polymarket.
This story does not have two clearly opposing sides.
Trump Jr was named a strategic adviser to Kalshi.
Handelsblatt reported that Trump Jr became an investor in Polymarket.
1789 Capital increased its investment in Polymarket as part of a funding round.
Kalshi said it and Trump Jr had mutually agreed to end his advisory role.
- Advisory role
- Trump Jr was named a strategic adviser in January 2025.
- Investment firm
- 1789 Capital increased its investment in Polymarket.
- Competitor
- Polymarket is described as Kalshi’s rival.
- Kalshi valuation
- $40 billion, according to Economic Times.
2 sources
What people are saying
We have mutually agreed to end Don's advisory role after his firm's significant investment in a competitor this past summer. We are grateful for his contributions in helping us market Kalshi to more customers