In 2017, North Dakota lawmakers made electronic pull tab machines legal for charitable gaming. That resulted in a 52 percent increase in state gaming revenue, but tribal casinos have taken a hit. North Dakota Indian Affairs Commissioner Scott Davis says that when this legislation was being debated, tribal interests were assured that it wouldn't impact their casinos. Yet it has. Davis says tribal casinos have seen a 30 to 45 percent decline in revenues.

"I don't want to use the word duped," Davis said, but the tribes feel duped.