The Workers' Party is a centre-left political party in Brazil that is currently the country's ruling party. Some scholars classify its ideology in the 21st century as social democracy, with the party shifting from a broadly socialist ideology in the 1990s, although the party retains a left-wing and marginal far-left faction to this day. Founded in 1980, PT governed at the federal level in a coalition government with several other parties from 1 January 2003 to 31 August 2016. After the 2002 parliamentary election, PT became the largest party in the Chamber of Deputies and the largest in the Federal Senate for the first time. With the highest approval rating in the history of the country at one time, President Luiz Inácio Lula da Silva was PT's most prominent member. Dilma Rousseff, also a member of PT, was elected twice but did not finish her second term due to her impeachment in 2016. The party came back to power with Lula's victory in the 2022 presidential election.
Communism in Peru was represented by far-left-oriented organizations that refer to themselves as communist (comunista) parties, movements, organizations, groups, etc.
The Communist Party of Brazil is a political party in Brazil. The PCdoB officially adheres to Marxist–Leninist theory. It has national reach and deep penetration in the trade union and student movements, but little representation in elected positions.
The Trotskyist Fraction – Fourth International is a political international of Trotskyist political organizations that claim to adhere to the political legacy of the Fourth International. It was formed by groups which arose as the "Internationalist Bolshevik Faction" within the International Workers League (IWL-FI) in 1989. Regarded at first as an "external fraction" who had been wrongly expelled, from 1988 to 1990 the Argentinian Socialist Workers' Party (PTS) had three splits: first when a number of militants returned to the Argentinian Movement for Socialism (MAS) party, then when another group of militants sympathized with the British Workers Revolutionary Party and the third when supporters of León Pérez decided to follow a mass party perspective.
The Brazilian Communist Party, originally the Communist Party of Brazil, is a communist party in Brazil, founded on 25 March 1922. Arguably the oldest active political party in Brazil, it played an important role in the country's 20th-century history despite the relatively small number of members. A factional dispute led to the formation of PCdoB in the 1960s, though both communist parties were united in opposition to the Brazilian military government that ruled from 1964 to 1985. But with the fall of the Soviet Union and the collapse of communism circa 1990, the party lost power and international support. An internal coup in 1992 divided the party and formed a new party, called Popular Socialist Party, using the former identification number of the PCB, 23. That party has since moved towards the centre and now goes by the name Cidadania.
The Spanish Communist Workers' Party is an anti-revisionist Marxist-Leninist communist party in Spain. It was founded in 1973, when Enrique Líster revolted against the Eurocommunist line of Communist Party of Spain (PCE) general secretary Santiago Carrillo. The party published Análisis.
Communist Party of the Peoples of Spain is a Marxist–Leninist communist party in Spain. PCPE was founded out of the unification of several Marxist-Leninist factions. The youth organization is called the Communist Youth of the Peoples of Spain.
The Revolutionary Socialist Party was a left-wing party in Portugal, founded in 1978 after the merger of two Trotskyist parties: the Internationalist Communist League and the Workers Revolutionary Party. The LCI and PRT were both part of the reunified Fourth International. The International recognised the PSR as its Portuguese section.
The Workers Revolutionary Party was a left-wing political party in Portugal. It was founded on January 31, 1975.
The Unified Socialist Party of Mexico was a socialist political party in Mexico. It later became the Mexican Socialist Party in 1988.
Socialism in Brazil is generally thought to trace back to the first half of the 19th century. There are documents evidencing the diffusion of socialist ideas since then, but these were individual initiatives with no ability to form groups with actual political activism.
The Workers' Socialist Movement, known for many years as the Workers' Socialist Party, is a Trotskyist political party in Bolivia. PST/MST was affiliated to LIT-CI for a long period.
The Fourth International was established as an "International Centre of Reconstruction" by co-thinkers of Pierre Lambert, in 1981 who argued that the post-war political evolution of the Fourth International under the leadership of Michel Pablo and Ernest Mandel had taken the FI away from the ideas of its founder, Leon Trotsky. In the opinion of Lambert and his co-thinkers, the FI needed to be reconstructed. In 1993, they formed a new International, which they describe as the Fourth International.
Nahuel Moreno was a Trotskyist leader from Argentina. Moreno was active in the Trotskyist movement from 1942 until his death.
The United Socialist Workers' Party is the Argentine section of the International Workers' League (LIT), a Trotskyist-Morenoist grouping.
Socialist Workers' Current is a far-left Trotskyist political organisation in Brazil, created in 1992 by a split of the Socialist Convergence. CST is an active tendency of the Socialism and Liberty Party (PSOL) and the Brazilian section of the International Workers' Unity – Fourth International. CST split from Worker's Party (PT) when its federal deputy Babá was expelled from PT, after voting against the pension reform proposed by ex-president Lula. Among the largest currents in PSOL, CST is the most leftist tendency.
