The Grievance Committee consists of five members. The Reservation Business Committee consists of seven members: Chief, Second Chief, Secretary-Treasurer and four RBC Members. The Seneca–Cayuga Nation have an elected system of government, consisting of two governing bodies: the Reservation Business Committee (RBC), which acts as the Tribe's legislative council and oversees the daily governing of the Tribe, and the Grievance Committee, which acts as the Tribe's judiciary. The other two federally recognized Seneca tribes are located in New York: the Seneca Nation of New York and the Tonawanda Band of Seneca Indians.
They are descended from Iroquoian peoples who had relocated to Ohio from New York state in the mid-18th century. They have a tribal jurisdictional area in the northeast corner of Oklahoma and are headquartered in Grove. The tribe had more than 5,000 people in 2011. It includes the Cayuga people and is based in Oklahoma, United States. The Seneca–Cayuga Nation is one of three federally recognized tribes of Seneca people in the United States. Haudenosaunee, Wyandot, other Iroquoian peoples Flag of the Seneca-Cayuga Tribe of Oklahoma