The Mattakeeset Massachuset tribe contend the Mashpee Wampanoag tribe doesn't have exclusive claim to the lands under their planned First Light casino in the city of Taunton, as they've argued for years. “Larry is well-meaning but very confused,” said Steven Peters, the Mashpee Tribe’s spokesman. Meanwhile, the tribe’s prominent, longtime chairman was arrested last month on federal bribery charges in connection with the casino project. At least two members of other Massachusetts tribes have raised the issue in recent years, and local casino opponents have made similar arguments in their long-running federal court challenge. Peters, the spokesman for the Mashpee Wampanoag tribe, said he and other tribe scholars haven't reviewed Bangs’ book.