Senate Democrats Question X Over Alleged Preferential Treatment for Polymarket

A group of Senate Democrats has formally questioned Elon Musk's social media platform X regarding allegations that it gives the prediction market Polymarket preferential treatment on user timelines. Senators Catherine Cortez Masto, Jacky Rosen, Adam Schiff, and Richard Blumenthal raised the concerns in a letter sent to X Chief Compliance Officer Rob DeCampos.

The lawmakers highlighted screenshots indicating that users lack the option to report Polymarket advertisements on X. By contrast, ads from other companies, including prediction market competitor Kalshi and Musk's Starlink, provide users with a standard reporting option.

The congressional inquiry suggests that the platform's handling of these ads might offer an undue competitive advantage. The letter points to connections between Polymarket and the family of the president, noting that Donald Trump Jr. serves on the platform's advisory board and that his venture capital firm, 1789 Capital, became a major financial backer of Polymarket in September.

In their letter, the senators questioned whether X permits advertisers to run ads lacking the report feature and whether representatives of Polymarket or the Trump family approached the platform regarding the functionality. The lawmakers requested a response from X leadership by November 30.

The scrutiny surrounding prediction markets extends beyond social media advertising into regulatory and legal arenas. Prediction markets operate under oversight from the Commodity Futures Trading Commission, allowing users to trade contracts tied to real-world outcomes such as elections, economic data, and sports.

However, the legal landscape governing these platforms remains fragmented across the United States. Recent federal appeals court decisions have created conflicting rulings regarding whether individual states possess the authority to regulate prediction markets as traditional forms of gambling and sports betting.

As these legal battles potentially head toward the Supreme Court, the Senate Democrats also asked X how it plans to ensure that prediction market ads featuring sports are properly restricted in states where such activities face regulatory bans.