# Kalshi ends Donald Trump Jr.’s advisory contract over 1789 Capital’s Polymarket investment > HelixNews · Web page: https://helixnews.one/story/2473862 · All pages for agents: https://helixnews.one/llms.txt 7 outlets covering · First listed: CoinDesk, Nov 12, 2026, 3:07 PM · Read it: Trump Jr. joined Kalshi as a strategic adviser in January 2025, helping the prediction market expand its customer base and strengthen its market presence. ## Who's covering it In the order they published: - Nov 12, 2026, 12:54 PM: [Kalshi ends Donald Trump Jr advisory contract after his firm invests in rival Polymarket]() — Crypto Briefing (Specialist) Kalshi's decision underscores the importance of managing conflicts of interest, especially when seeking new capital and maintaining competitive integrity. - Nov 12, 2026, 1:14 PM: [Donald Trump Jr. exits advisory role at Kalshi prediction market]() — CNBC (Business & finance, United States, rated Center) The president's son will no longer serve as an advisor at Kalshi. - Nov 12, 2026, 1:35 PM: [Kalshi ends the advisory contract it signed with Donald Trump Jr. in January 2025, after his VC firm 1789 Capital increased its stake in Polymarket (Anirban Sen/Reuters)]() — Techmeme (Aggregator, United States) - Nov 12, 2026, 1:54 PM: [Donald Trump Jr. Leaves Kalshi Advisory Role Over Conflict With Polymarket]() — Forbes (Magazine, United States, rated Center) Trump Jr.’s financial firm, 1789 Capital, recently expanded its financial stake in Kalshi rival, Polymarket. - Nov 12, 2026, 2:03 PM: [Kalshi says it’s cutting ties with Donald Trump Jr. over his firm’s big investment in rival Polymarket]() — NY Post (Newspaper, United States, rated Lean right) Reuters reported that the $40 billion startup mutually agreed to end its advisory contract with the president's son. - Nov 12, 2026, 3:07 PM: [Kalshi ends Donald Trump Jr.’s advisory contract over 1789 Capital’s Polymarket investment]() — CoinDesk (Specialist, United States) Trump Jr. joined Kalshi as a strategic adviser in January 2025, helping the prediction market expand its customer base and strengthen its market presence. - Nov 12, 2026, 3:38 PM: [Kalshi Severs Its Relationship With Donald Trump Jr.]() — New York Times (Newspaper, United States, rated Lean left) The country’s largest prediction market says it ended its contract with the president’s eldest son after his investment firm took a larger stake in its prime competitor.