Key Takeaways:
Sen. Bernie Moreno led the U.S. Senate to pass a unanimous ban on prediction market trading on April 30, 2026. Prediction platforms like Polymarket and Kalshi saw 2026 volume surges amid growing insider trading scandals. Senate Rule XXXVII now bars 100 members from betting on event contracts to ensure public trust in policy. Senator Bernie Moreno Leads Senate Charge to Prohibit Betting on Event ContractsMoreno, who has been a vocal critic of congressional “side hustles,” framed the resolution as a necessary step to restore public integrity. He argued that treating the U.S. Senate as a vehicle for personal financial gain is a fundamental betrayal of the American people.
These incidents provided the political momentum needed for a unanimous voice vote. While the Senate acted internally, Democratic lawmakers are simultaneously pressuring the Commodity Futures Trading Commission (CFTC) to implement broader industry-wide safeguards against insider trading.
The scope of this specific rule change is limited exclusively to the 100 members of the Senate. It does not currently apply to members of the House of Representatives, congressional staffers, or officials within the executive branch.
The resolution includes a minor carve-out for traditional insurance contracts to ensure that standard financial planning remains unaffected. This adjustment was made following a proposal by Senator Alex Padilla (D-CA) during the drafting process.
Violations of the new rule will now trigger immediate review by the Senate Ethics Committee. While the ban is not a statutory law, the unanimous consent reflects a rare moment of bipartisan agreement on the need for transparency in the digital age.
As the 2026 election cycle continues, the focus now shifts to whether the House will follow suit. For now, the Senate has sent a clear message that the Capitol is no place for speculators looking to hedge their bets on the future of the country.
