Chile's government is a representative democratic republic, whereby the President of Chile is both head of state and head of government, and of a formal multi-party system. Executive power is exercised by the president and by his or her cabinet. Legislative power is vested in both the government and the two chambers of the National Congress. The judiciary is independent of the executive and the legislature of Chile. The Economist Intelligence Unit rated Chile a "full democracy" in 2019, up .11 points and from being in the category of "flawed democracies" the previous year.