Senate Probe Request Targets Trump Jr. Prediction Market Ties

Dr. Annelies De Vos · 2026-09-24

### A Senator's Call for Scrutiny Utah Republican Sen. John Curtis isn't pulling any punches. He's formally asked the Senate Judiciary Committee to dig into the business dealings of presidential family members, and he's naming names: Donald Trump Jr. and Hunter Biden. In a letter dated September 21, Curtis urged committee leaders to examine whether these family ties have translated into private financial gains or preferential treatment. ### What Exactly Is Being Asked? Curtis sent his request to Judiciary Committee Chair Chuck Grassley and Ranking Member Dick Durbin. He wants the panel to investigate whether presidential family relationships have provided private financial benefits or preferential access. He also urged the committee to subpoena Trump Jr. and Biden over previous business activities. The letter specifically points to Trump Jr.'s involvement in prediction markets, though details remain sparse. Prediction markets, where people bet on future events, have gained traction in recent years. Critics worry that those with inside knowledge or political connections could exploit such platforms. > "The American people deserve to know if family ties are being cashed in for personal profit," Curtis wrote, according to a copy of the letter obtained by reporters. ### Why This Matters This isn't just about two individuals. It's about a broader question: where do we draw the line between private business and public office? When a president's relative sits on a corporate board or invests in a startup, should that raise red flags? The Senate Judiciary Committee has a history of examining ethical boundaries. But probing presidential families is always politically charged. Curtis, a freshman senator, is positioning himself as a voice for transparency. Whether his colleagues follow suit is another matter. - The request covers both sides of the aisle, naming Trump Jr. and Biden. - It seeks subpoenas for testimony and documents. - The committee hasn't yet announced whether it will act. ### The Prediction Market Angle Prediction markets like Polymarket and Kalshi have become popular for betting on everything from elections to economic indicators. Trump Jr. has been linked to advisory roles in such ventures. While not illegal, these ties could create conflicts of interest if policy decisions affect market outcomes. Hunter Biden, meanwhile, has faced scrutiny over his foreign business dealings, particularly in Ukraine and China. Curtis's letter references "previous business activities" without specifying further. ### What Happens Next? Grassley and Durbin will review the request. They could launch a formal investigation, refer it to another committee, or simply ignore it. Given the partisan divide, any probe would likely face pushback. Still, Curtis's move adds pressure to an already heated debate about ethics in Washington. It also keeps the spotlight on presidential families—a topic that never seems to fade. For now, the ball is in the Judiciary Committee's court. And if subpoenas are issued, expect a media firestorm. --- *This story is developing and will be updated as new information becomes available.*