Two major lottery drawings in Texas that put nearly $180 million in the pockets of winning ticket holders have set off widening state investigations over concern that ticket sellers and buyers may have exploited the rules.

The Texas Lottery, one of the largest in the U.S., is facing mounting scrutiny from state leaders over how the winners of an $83 million jackpot this month and a $95 million prize in 2023 purchased their odds-defying tickets. Both are among the largest jackpots in the history of the Texas lottery.

At the heart of the issue, Texas officials say, is whether the games are on a level playing field.

On Wednesday, Texas Attorney General Ken Paxton launched his own investigation on top of one announced earlier this week by Republican Gov. Greg Abbott. Part of the issue lies with couriers, the companies that purchase lottery tickets for customers remotely. One was used by this month’s winner.