Key actors in the forthcoming October elections include the National Electoral Commission, the Office of Registrar of Political Parties, and the main political parties. Tanzania has nineteen registered political parties, of which only five have a presence in parliament, namely the ruling CCM, that won three-quarters of the seats in the 2015 elections with 195 of the 264 constituencies, Chama cha Demokrasia na Maendeleo (Chadema) with 35 seats, the Civic United Front (CUF) with 32 seats, and ACT-Wazalendo and NCCR-Mageuzi (one seat each).