Kalshi CEO Tarek Mansour is learning this firsthand. The company he co-founded in 2018 with Luana Lopes Lara has grown into a $22 billion operation, making it the first federally regulated prediction market exchange in the US.

Congress comes knocking

On May 22, the House Committee on Oversight and Government Reform sent Kalshi a letter requesting detailed information about the company’s know-your-customer procedures and its anomaly detection measures, the internal systems designed to flag suspicious trading activity.

The catalyst: growing concerns about insider trading on the platform. Specifically, instances where politicians have been perceived to bet on their own electoral outcomes.

Mansour has responded by emphasizing Kalshi’s internal safeguards. The company has positioned itself as the compliance-first alternative to offshore competitors.