Prediction Markets: 3 Key Steps Toward Stronger Oversight

Senators Elizabeth Warren and Jeff Merkley are demanding answers from the White House over safeguards against insider trading on prediction markets following a case involving President Donald Trump’s former teleprompter operator. In a letter sent on November 10, 2026, the lawmakers asked White House Counsel Will Scharf to explain how the administration intends to prevent employees from using confidential government information to profit from online bets. The inquiry follows a regulatory settlement involving more than $173,000 in penalties.

Why Prediction Markets Face Growing Regulatory Scrutiny

The controversy centres on a former White House staffer who allegedly used advance knowledge of Trump's speeches to place bets on Kalshi, a prediction market platform. The employee's access to the president's prepared remarks reportedly gave him an advantage when wagering on words and phrases Trump would use publicly.

The Commodity Futures Trading Commission (CFTC) subsequently reached a settlement requiring the former staffer to pay $173,539 in penalties and accept a three-year trading ban.

Warren and Merkley argue that the incident should prompt stronger ethics safeguards across the federal government. They also questioned whether the White House's response, which reportedly included an internal warning memo, is sufficient to prevent similar conduct.

How Prediction Markets Could See Stronger Oversight

The senators want the administration to explain whether employees receive specific training on prediction market restrictions, how potential violations are monitored and whether officials have coordinated with regulators to address insider trading risks.

They also raised concerns about potential conflicts of interest involving President Trump's family and companies operating in the prediction market industry. These concerns remain part of the lawmakers' broader request for greater transparency.

Increased scrutiny could influence how platforms such as Kalshi and Polymarket monitor suspicious trading, verify users and enforce restrictions on confidential information.

The White House has been asked to respond by November 23. Warren is also expected to lead the Senate Banking Committee in January, potentially bringing prediction market oversight into future congressional investigations.

The controversy highlights a central challenge for prediction markets: maintaining market integrity when some participants may have access to information unavailable to the public. Stronger disclosure requirements and effective enforcement could become increasingly important as the industry expands.