As sports betting and prediction market platforms gain popularity, U.S. senators weighed the need to regulate use of the platforms by minors.

Sports betting on firms such as Kalshi was the focus of questions over advertising to children, cheating from athletes and undermining regulated gaming.

As sports betting and prediction market platforms gain popularity, U.S. senators weighed the need to regulate use of the platforms by minors.

Senators at a Commerce Committee panel hearing aired concerns Wednesday about rapidly growing prediction markets, appearing largely unswayed by industry arguments that they are…