An app for Kalshi is shown in Chicago, on Feb. 25, 2026. Scott Olson/Getty Images
A betting industry that has grown exponentially over the past two years is facing increasing scrutiny over a series of alleged insider trading scandals that have rocked congressional races and recently led to the arrest of a U.S. soldier.
Last week, Gannon Ken Van Dyke was indicted after betting on the mission to capture former Venezuelan leader Nicolás Maduro.
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