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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 their 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 Constitution of Chile was approved in a national plebiscite in September 1980, under the military dictatorship of Augusto Pinochet. It entered into force in March 1981. After Pinochet left power in 1990, saying this country was ready to keep going along with a plebiscite, the Constitution was amended to ease provisions for future amendments to the Constitution.
In September 2006, President Ricardo Lagos signed into law several constitutional amendments passed by Congress. These include eliminating the positions of appointed senators and senators for life, granting the President authority to remove the commanders-in-chief of the armed forces, and reducing the presidential term from six to four years while also disabling immediate re-election.
The Economist Intelligence Unit rated Chile a "full democracy" in 2022.[1][needs update] According to the V-Dem Democracy indices Chile is 2023 the third most electoral democratic country in Latin America.[2]
Statistical analysis suggests Chilean politicians in Congress "are not randomly drawn from the population, but over-represent high-income communities". As such Chileans of Castilian-Basque, Palestinian and Jewish ancestry are overrepresented in it.[3]