Senators Question KPMG After Employees Traded on Prediction Markets

Senators have sharpened oversight of prediction markets after reporting showed a Jan. 5 Polymarket bettor placed about $20,000 on Nicolás Maduro being removed by Jan. 31 and, when the contract resolved roughly 12 hours after a U.S. strike, netted more than $400,000, the senators’ letter cited reporting by The Wall Street Journal and was summarized by CNBC. That profit and similar high‑conviction trades are central to lawmakers’ critiques of platforms such as Polymarket and Kalshi.

The senators’ letter also singled out a Polymarket listing from Jan. 20 that asked whether NASA’s Artemis II mission would “explode,” noting the “Yes” position traded as high as 8% before the contract was renamed and withdrawn amid public backlash. The letter warned the contract “incentivized the failure of the mission and potential insider sabotage,” while Polymarket’s Feb. 15 clarification characterized the market as “about a potential booster‑stage rupture - a defined hardware failure scenario,” not “about crew injury or loss of life,” according to CNBC’s reporting.

Market volumes have amplified the stakes. Polymarket recorded a single‑day notional trading volume of $478 million, with politics accounting for $220 million, figures reported by Yahoo Finance/Beincrypto. Kalshi’s contract titled “Ali Khamenei out as Supreme Leader?” accumulated more than $50 million in total volume, with roughly $20 million traded on the platform’s so‑called strike day, per the same reporting. Those numbers underline why senators and regulators are treating prediction markets as more than niche curiosities.

Platform responses have included stepped‑up surveillance and account actions. Kalshi CEO Tarek Mansour told reporters the company “conducted more than 200 investigations in the past year, froze accounts and referred cases to law enforcement,” as reported by The Guardian. Polymarket posted the Feb. 15 clarification on Artemis II and has faced renewed scrutiny after the Jan. 5 trades; the platform was previously barred from operating in the U.S. in 2022, and the senators’ letter said the CFTC has “cleared the way” for Polymarket to reenter American markets, according to CNBC’s summary.

Regulatory and legal fights are multiplying. At least 20 federal lawsuits are pending nationwide over whether Kalshi and Polymarket should be treated as federally regulated exchanges or as state‑regulated gambling operations, The Guardian reported. The CFTC has signaled it views the issue as its exclusive domain, with a statement quoted by The Guardian saying its chair “had always stood by the CFTC’s exclusive authority to regulate the marketplace for those products,” and the agency recently filed a friend‑of‑the‑court brief asserting that jurisdiction.

The controversy has also produced criminal probes abroad. New York Magazine reported an Israeli indictment charging an IDF reservist and a civilian with bribery and obstruction for allegedly betting on Israeli military actions using classified information; the IDF called the reservist’s conduct a “grave ethical failure and a clear crossing of a red line,” while saying “no operational harm was caused in this specific incident,” Nymag reported.

For KPMG managers and compliance teams, these episodes crystallize concrete risks: well‑timed trades with six‑figure payoffs, platform withdrawals and renamings, record single‑day volumes, and cross‑border criminal charges. Platforms are already freezing accounts and referring cases to law enforcement, and senators have flagged specific contracts and profits in public letters. The near‑term items to watch are CFTC filings, the tranche of federal lawsuits, any law‑enforcement referrals tied to trading on Polymarket or Kalshi, and whether platforms publish clearer employee or institutional‑access controls.