Chilean Constitution of 1980 in the context of "President of Chile"

Augusto José Ramón Pinochet Ugarte (25 November 1915 – 10 December 2006) was a Chilean military officer and politician who was the President of Chile from 1973 to 1990. From 1973 to 1981, he was the leader of the military junta, which in 1974 declared him President of Chile; in 1980, a referendum approved a new constitution confirming him in the office, after which he served as de jure president from 1981 to 1990. His time in office remains the longest of any Chilean ruler.

Augusto Pinochet rose through the ranks of the Chilean Army to become General Chief of Staff in early 1972 before being appointed its Commander-in-Chief on 23 August 1973 by President Salvador Allende. On 11 September 1973, Pinochet seized power in Chile in a military coup. The military had previously received financial and intelligence support from the United States, which favored the military coup that toppled Allende's democratically elected socialist Unidad Popular government and ended civilian rule. In December 1974, the ruling military junta appointed Pinochet Supreme Head of the nation by joint decree, although without the support of one of the coup's instigators, Air Force General Gustavo Leigh.

An authoritarian military dictatorship ruled Chile for almost seventeen years, between 11 September 1973 and 11 March 1990. The dictatorship was established after the democratically elected socialist government of Salvador Allende was overthrown in a coup d'état backed by the United States on 11 September 1973. During this time, the country was ruled by a military junta headed by General Augusto Pinochet. The military used the breakdown of democracy and the economic crisis that took place during Allende's presidency to justify its seizure of power. The dictatorship presented its mission as a "national reconstruction". The coup was the result of multiple forces, including pressure from conservative groups, certain political parties, union strikes and other domestic unrest, as well as international factors.

The regime was characterized by the systematic suppression of political parties and the persecution of dissidents to an extent unprecedented in the history of Chile. Overall, the regime left over 3,000 dead or missing, tortured tens of thousands of prisoners, and drove an estimated 200,000 Chileans into exile. The dictatorship's effects on Chilean political and economic life continue to be felt. Two years after its ascension, neoliberal economic reforms were implemented in sharp contrast to Allende's leftist policies. The government was advised by the Chicago Boys, a team of free-market economists educated in the United States. Later, in 1980, the regime replaced the 1925 Constitution with a new constitution in a controversial referendum. This established a series of provisions that would eventually lead to the 1988 Chilean national plebiscite on October 5 of that year.

A constitutional referendum was held in Chile on 11 September 1980. The proposed new constitution would replace the 1925 constitution, and was approved by over two-thirds of voters.

The referendum was controversial, as Chile was then being ruled by a military dictatorship, and it ensured that Augusto Pinochet would remain in power with a rule by decree until 1988, after which he was peacefully removed from power following a popular referendum.

The National Congress of Chile (Spanish: Congreso Nacional de Chile) is the legislative branch of the Republic of Chile. According to the current Constitution (Chilean Constitution of 1980), it is a bicameral organ made up of a Chamber of Deputies and a Senate. Established by law No. 18678, the city of Valparaíso is its official headquarters.

Chile's congress is the oldest operational in Latin America and one of the oldest in Ibero-America. The First Chilean National Congress was founded on July 4, 1811, to decide the best kind of government for the Kingdom of Chile during the captivity of King Ferdinand VII in the hands of Napoleon.

Chile's government is a representative democratic republic, in which the President of Chile serves as both head of state and head of government, within a formal multi-party system. Executive power is exercised by the president and their cabinet. Legislative power is vested in both the government and the two chambers of the National Congress. The judiciary operates independently of both the executive and legislative branches.

The Constitution of Chile was approved in a national plebiscite in September 1980, during the military dictatorship of Augusto Pinochet, and came into effect in March 1981. After Pinochet was voted out of office in 1988, the Constitution was amended the following year to simplify the process for future amendments.

The Constitutional Convention (Spanish: Convención Constitucional) was the constituent body of the Republic of Chile in charge of drafting a new Political Constitution of the Republic after the approval of the national plebiscite held in October 2020. Its creation and regulation were carried out through Law No. 21,200, published on 24 December 2019, which amended the Political Constitution of the Republic to include the process of drafting a new constitution. The body met for the first time on 4 July 2021. Chilean President Sebastian Piñera said, "This Constitutional Convention must, within a period of 9 months, extendable for an additional 3 months, draft and approve a new constitution for Chile, which must be ratified by the citizens through a plebiscite." It ended its functions and declared itself dissolved on 4 July 2022.

The proposed constitution, which had faced "intense criticism that it was too long, too left-leaning and too radical", was rejected by a margin of 62% to 38% in the 2022 Chilean national plebiscite.