Warren Poised to Tighten Oversight of Prediction Markets After $172,000-Plus Settlement

Key Facts

Sen. Elizabeth Warren is preparing to expand scrutiny of prediction markets and cryptocurrency ventures linked to President Donald Trump’s family when she takes over as chair of the Senate Banking Committee in January, according to a report published by The Block on Nov. 9. A committee aide said her agenda would include affordability, artificial intelligence, prediction markets, the possibility of a financial crisis and accountability. The move follows Democrats’ taking control of the Senate last week, the report said. The aide said Warren wants to make life less expensive for families, rein in industries that raise costs and undermine Americans’ financial security, and fight corruption. Warren is thus placing prediction markets and the Trump family’s businesses on a broader oversight agenda that extends beyond cryptocurrency.

Warren will not take over as committee chair until January, but the expected post would give her greater influence over issues within its jurisdiction. Reuters reported that she is widely expected to become chair when Democrats take the reins of Congress, allowing her to expand the committee’s staff, use its powers to subpoena witnesses and request testimony, and advance legislation. The committee oversees issues including banks, deposit insurance, housing, the Federal Reserve and cryptocurrency, according to The Block. The Senate Agriculture Committee and the House Financial Services Committee will remain key panels dealing with cryptocurrency. The broad jurisdiction means potential scrutiny of digital-asset companies could intersect with wider banking and political issues.

Prediction markets have become a priority after repeated criticism from Warren of Kalshi and Polymarket. She has sought answers about election-related bets and how the platforms intend to prevent insider trading. In September 2026, the 11 Democratic members of the Senate Banking Committee requested a public hearing on the markets, according to a committee statement. They said some event contracts tied to company performance could fall under the definition of security-based swaps, making them subject to Securities and Exchange Commission oversight. They also warned of manipulation and insider-trading risks, and cited preliminary research indicating that profits are concentrated among a small share of users while most lose money. Those concerns give Warren a specific basis for pressing the platforms to explain their safeguards, particularly for political bets.

Insider-trading risks returned to the spotlight after an active-duty U.S. soldier was accused of using classified information to bet on Polymarket before the capture of former Venezuelan President Nicolás Maduro earlier in the year, according to The Block. In a separate case, a former White House employee responsible for the teleprompter agreed to pay more than $172,000 to settle allegations that he used advance knowledge of Trump’s speeches to profit through Kalshi. The two cases link Warren’s interest to practical questions about the timing of bets and the source of information traders rely on. She has also called for an investigation into Trump’s meme coin and an ethics investigation into alleged conflicts of interest involving the Trump family-, UAE- and Trump aide-backed World Liberty Financial project. In June 2026, the Senate Banking Committee’s minority staff said in a report that Emirati entities had invested hundreds of millions of dollars in cryptocurrency ventures linked to the Trump family, and that the administration later took at least 10 policy actions that benefited the UAE. These issues provide the backdrop for questions the committee could raise about links between business interests and government decisions.

A committee aide said cryptocurrency companies affiliated with the Trump family, executive-branch officials, senior Wall Street officials, leaders of major technology companies and large corporations should preserve their documents and be prepared to answer tough questions. The report did not identify any formal actions already underway on these issues, but pointed to the oversight tools Warren could gain as the expected committee chair. Among the matters the committee could examine, Reuters reported, is the Office of the Comptroller of the Currency’s August approval of a banking charter for Trump-backed World Liberty Financial. Reuters also said the committee could examine mass layoffs of financial-agency employees and efforts to shut down the Consumer Financial Protection Bureau. Warren wrote in an opinion article that Democrats’ priorities should include examining the administration’s business dealings, adding that she is ready to work with any Republican who listens to Americans. Whether these issues lead to hearings or investigations will depend on the committee’s actions after Warren is expected to take over in January.