The government is led by the Prime Minister, who selects all the remaining ministers. The prime minister and the other most senior ministers belong to the supreme decision-making committee, known as the Cabinet. The government ministers all sit in Parliament, and are accountable to it. The government is dependent on Parliament to make primary legislation, and since the Fixed-terms Parliaments Act 2011, general elections are held every five years to elect a new House of Commons, unless there is a successful vote of no confidence in the government in the House of Commons, in which case an election may be held sooner. After an election, the monarch (currently Queen Elizabeth II) selects as prime minister the leader of the party most likely to command a majority of MPs in the House of Commons.