Donald Trump Jr. Leaves Kalshi, Keeps Polymarket Role a Week After Democrats Win Congress

Donald Trump Jr. no longer advises Kalshi . The prediction market and the president’s eldest son mutually agreed to end the arrangement, according to multiple media reports Thursday, pointing to an investment his venture firm, 1789 Capital , made in Kalshi’s main rival, Polymarket . “We have mutually agreed to end Don’s advisory role after his firm’s significant investment in a competitor this past summer,” a Kalshi spokesperson reportedly said. “We are grateful for his contributions in helping us market Kalshi to more customers.” Kalshi’s move follows last week’s midterm sweep, which handed Democrats both chambers of Congress. Sen.