The United Kingdom is a parliamentary democracy based on a constitutional monarchy. The people of the United Kingdom vote for a members of Parliament to speak for them and to make laws for them. Queen Elizabeth II is the Queen of the United Kingdom of Great Britain and Northern Ireland and is the head of state. The government, led by the Prime Minister, governs the country and appoints cabinet ministers. Today, the Prime Minister is Boris Johnson, who is the leader of the centre-right Conservative Party.