Because the Nations were sovereign, with treaty rights and obligations, the Wisconsin tribes innovated Indian gaming in 1988, that is, on-reservation gambling casinos, which have since become a US$14 billion industry nationwide. This has been imitated in many of the respective states that still have indigenous American tribes. The money that this generates has engendered some political scandal. For example, the Tigua tribe, which fled their ancestral lands in New Mexico during the Pueblo revolt of 1680, and who then settled on land in El Paso County, Texas, has paid for a low probable return to the tribe because of the Jack Abramoff publicity.