Senator Richard Blumenthal (Democrat from Connecticut) has raised alarms about the increasing influence of gambling on U.S. sports leagues, sending letters to the commissioners of the NFL, NBA, NCAA, MLB, NHL, and MLS. He expressed concerns about the integrity of sports, the potential for gambling addiction, and the dehumanization of athletes as financial assets. Blumenthal requested information on the leagues' partnerships with sportsbooks and prediction markets by May 1, highlighting that since the federal ban on sports gambling was lifted eight years ago, gambling has infiltrated sports culture. The NCAA remains the only league without a commercial sportsbook partnership, although it has a data-sharing agreement with licensed sportsbooks. Blumenthal also touched on the contentious issue of regulating prediction markets, which have faced legal challenges from states attempting to enforce gambling regulations. He recently introduced legislation aimed at banning insider trading on prediction markets and ensuring that these markets are subject to state oversight. The growing concern reflects a broader debate on how to balance the expansion of sports gambling with the integrity and safety of the games and players.