… tribal self-governance—treat Native Americans differently based on this … in 1957. By treating Native Americans differently, the system … , he argued. For Native Americans to become “full-fledged … , the Association on American Indian Affairs found white families …… tribal self-governance—treat Native Americans differently based on this … in 1957. By treating Native Americans differently, the system … , he argued. For Native Americans to become “full-fledged … , the Association on American Indian Affairs found white families …