Israel is governed by a 120-member parliament, known as the Knesset. Membership of the Knesset is based on proportional representation of political parties, with a 3.25% electoral threshold, which in practice has resulted in coalition governments. Residents of Israeli settlements in the West Bank are eligible to vote and after the 2015 election, 10 of the 120 MKs () were settlers. Parliamentary elections are scheduled every four years, but unstable coalitions or a no-confidence vote by the Knesset can dissolve a government earlier.