CFTC faces questions over insider trading in Warren-Curtis letter

Warren-Curtis letter opens insider trading question CFTC has not answered

Robert DeNault told The Hill that Kalshi prohibits insider trading and blocks candidates from trading. What he did not address — and what the Warren-Curtis letter is actually asking — is whether the compliance architecture Kalshi has built meets the legal standard the CFTC is obligated to enforce.

The FEC payroll screen is the mechanism at the center of this. Kalshi uses Federal Election Commission payroll records to identify candidates and campaign staff before they can trade. Mark Moran, a former Virginia Senate candidate, registered with his driver's license, was added to a prospective candidates market, and placed two trades on January 27, 2026. The screen did not stop him. He then promoted the market on social media, which is how Kalshi's compliance team found out. The system caught the violation the way a neighbor reports a broken window — after the fact, from outside.

Moran's case matters less for what he did than for what it demonstrates about the detection sequence. The CFTC's framework for designated contract markets under Section 5 of the Commodity Exchange Act requires that an exchange maintain rules that prevent market manipulation and protect market integrity. The operative word is "maintain" — not "respond to" and not "remediate after social media disclosure." Whether an FEC payroll screen, standing alone, constitutes a maintained rule capable of detecting a candidate who has not yet appeared on federal payroll records is a compliance question with a legal answer. The CFTC has the authority to examine that answer. Whether it has done so is not on the public record.

The senators' letter references alleged manipulation during the 2024 presidential election affecting roughly a third of the presidential market's trading volume. That figure, if accurate, is not a tail-event anomaly in an otherwise clean market. It is a structural exposure. A designated contract market that processes that volume is required under CFTC Core Principle 4 to have capacity — systems and procedures — sufficient to detect and respond to manipulation. The question the Warren-Curtis letter is pressing, stripped of its political framing, is whether Kalshi and Polymarket have demonstrated that capacity to the regulator, or only to themselves.

The criminal case in Utah against Tarek Mansour and other Kalshi executives adds a layer the senators do not need to lean on but clearly did. Thirteen felony counts and one misdemeanor in a state proceeding running parallel to a federal preemption fight creates exactly the kind of pressure that accelerates congressional attention without necessarily producing congressional action. The letter is not legislation. It is a documented inquiry that, if unanswered or inadequately answered, becomes an exhibit.