The U.S. Senate has moved quickly to prohibit its own members from trading on prediction markets, citing growing concern over insider advantages and ethical gray areas tied to the fast-expanding platforms. In a unanimous April 30 vote, lawmakers approved a rule barring senators, staff, and Senate officers from participating, with immediate effect. Rising scrutiny over prediction market access Pressure had been building as watchdogs and policymakers raised concerns that access to sensitive or nonpublic information could provide an unfair edge in markets where users trade on real-world outcomes such as elections and geopolitical events. Even indirect insights into policy or global developments could translate into profitable positions. Bipartisan push gains momentum Sen. Bernie Moreno led the bipartisan effort, arguing the measure is necessary to maintain public trust. Lawmakers across party lines have increasingly warned about the risks of combining public service with speculative financial activity in fast-moving markets. Broader regulatory efforts take shape The Senate’s move aligns with a wider push in Washington to tighten rules around financial activity by public officials. Concerns over congressional …