The Coeur d'Alene Tribe is asking the Idaho Supreme Court to order the state to enforce legislation banning instant horse racing terminals.
The tribe filed the petition with the state's highest court on Wednesday, contending that Gov. C.L. "Butch" Otter's veto of the legislation was invalid because the governor didn't complete the veto within the required five-day time span.
Known as instant horse racing, the machines allow bettors to place wages on prior horse races with no identifiable information. Idaho lawmakers approved legalizing the machines in 2013, but passed the legislation banning them earlier this year.
Backers of the ban - including the Coeur d'Alene Tribe - argue the machines are essentially slot machines, which are illegal under Idaho's Constitution.