DES MOINES, Iowa (AP) — A legislative committee in Iowa plans to look into the jackpot-fixing scandal that started in the state and has spread to several other state lotteries. Rep. Bobby Kaufmann says the Iowa House government oversight committee will investigate how it was possible for an employee at the Multi-State Lottery Association to allegedly fix jackpots. He says lawmakers want to prevent it from happening again.

Kaufmann said lawmakers may seek documents and testimony from the Urbandale, Iowa-based lottery association, which runs the popular Powerball game and is governed by 37 lotteries in U.S. states and territories.

The alleged scheme didn’t affect Powerball, which uses balls instead of computers to draw numbers. That game is expected to set a world jackpot record in Wednesday’s drawing of $1.5 billion.