Scoopfeeds — Intelligent news, curated.
business

Oversight Chairman Comer launches congressional probe into insider trading on Kalshi, Polymarket

CNBC · May 22, 2026, 11:18 AM · Also reported by 4 other sources

Key takeaways

  • Livestream Menu Make Itselect USAINTLLivestream Search quotes, news & videos Livestream Watchlist SIGN INCreate free account Markets Business Investing Tech Politics Video Watchlist Investing Club PROLivestream Menu
  • Comer's probe is the latest in a series of congressional attempts to rein-in the platforms.
  • A similar letter, also seen by CNBC, was sent Friday to Kalshi CEO Tarek Mansour.

Livestream Menu Make Itselect USAINTLLivestream Search quotes, news & videos Livestream Watchlist SIGN INCreate free account Markets Business Investing Tech Politics Video Watchlist Investing Club PROLivestream Menu

Rep. James Comer, R-Ky., chair of the House Oversight and Government Reform Committee, announced Friday on CNBC's "Squawk Box" that he is seeking information from the CEOs of Kalshi and Polymarket on their efforts to prevent insider trading on their platforms.

Comer's probe is the latest in a series of congressional attempts to rein-in the platforms.

Article preview — originally published by CNBC. Full story at the source.
Read full story on CNBC → More top stories

Also covered by

Aggregated and edited by the Scoop newsroom. We surface news from CNBC alongside other reporting so you can compare coverage in one place. Editorial policy · Corrections · About Scoop