The Trotskyist Fraction – Fourth International (TF-FI) is a political international of Trotskyist political organizations that claim to adhere to the political legacy of the Fourth International.
In Struggle was a Spanish revolutionary socialist organisation within Trotskyist tradition. It was part of the International Socialist Tendency led by the British Socialist Workers Party It was founded in 1994 with the name Socialismo Internacional, which was changed in 1998 to Izquierda Revolucionaria and finally to En Lucha/En Lluita in 2001. For a number of years, it produced a newspaper under those names. The group was mainly based in Catalonia, especially in the city of Barcelona, but also had branches in other parts of the Spanish state, notably in Madrid and Andalusia. In 2016, In Struggle voted to dissolve.
Workers' Cause Party is a political party in Brazil. Its origins can be traced back to 1978, when several Trotskyist activists who were not satisfied with the socialist international united under the name Tendência Trotskista do Brasil. However, the registered party was only established in 1995. Its electoral number is 29.
The Socialist Workers' Party, previously known as the Workers Party for Socialism, is a Trotskyist political party in Argentina. It was founded in 1988 by expelled members of the Movement for Socialism (MAS). MAS was a Trotskyist party led by Nahuel Moreno until his death.
Revolutionary Left is a Trotskyist political party in Spain formerly affiliated with the Committee for a Workers' International (CWI). Revolutionary left publishes El Militante in Spanish, Militant in Catalan and Euskal Herria Sozialista. They contain a socialist perspective on news and current issues. It campaigns for a party of the working class to express the political needs of those not benefiting from the capitalist system. They believe a strong and organized movement of workers and young people can overthrow capitalism and establish a new society. This can be achieved by taking banks and big businesses into public ownership and administering them through democratic control and management.
The Revolutionary Internationalist Organization (RIO) is a political group in Germany advocating for the dissemination of socialist and internationalist ideas. It is the publisher of the online newspaper Klasse Gegen Klasse and part of the international newspaper network La Izquierda Diario. The RIO aims to achieve societal changes toward a classless society and supports social movements internationally. Its ideology is based on Marxist, Trotksyist, and internationalist principles.
United Left is a federative political movement in Spain that was first organized as a coalition in 1986, bringing together several left-wing political organizations, grouped primarily around the Communist Party of Spain.
The Workers' Left Front – Unity is an electoral alliance of four revolutionary Trotskyist communist parties in Argentina: the Workers' Party (PO), the Socialist Workers' Party (PTS), Socialist Left (IS), and the Workers' Socialist Movement (MST). Initially founded in 2011, the alliance added MST in 2019.
Nicolás del Caño is an Argentine politician from the Socialist Workers' Party. He was twice the presidential candidate for the Workers' Left Front (FIT).
Nahuel Moreno was a Trotskyist leader from Argentina. Moreno was active in the Trotskyist movement from 1942 until his death.
Revolutionary Socialism is a Trotskyist political party in Spain affiliated with International Socialist Alternative (ISA). It publishes monthly magazines in Spanish and Catalan called La Brecha and La Bretxa which contained a socialist perspective on news and current issues. It campaigned for a party of the working class to express the political needs of those not benefiting from the capitalist system. They believed a strong and organized movement of workers and young people can overthrow capitalism and establish a new society. This can be achieved by taking banks and big business into public ownership and administering them through democratic control and management.
Laura Vilches is an Argentinian teacher and politician. She is one of the national referents of the Socialist Workers' Party (PTS), a trotskyist party member of the Workers' Left Front (FIT) for which she was a provincial deputy in Córdoba Province from 2014 to 2015, and later from 2015 to 2019.
Myriam Bregman is an Argentine lawyer, activist, and politician. Raised in a Jewish family, Bregman joined the Socialist Workers' Party (PTS) – a Trotskyist Argentine party of which she is among the most prominent members – while studying a degree in law at the University of Buenos Aires in the 90s.
The Socialist Workers Movement (MTS) is a far-left Mexican National Political Association. It was formed in 2014 by the former League of Workers for Socialism – Countercurrent (Liga de Trabajadores por el Socialismo – Contracorriente, LTS-CC) for registration with the National Electoral Institute.
The Workers' Revolutionary Current is a Trotskyist group in Spain.
The Revolutionary Workers Party is a Trotskyist political party in Chile. It was founded in January 2017 and was the Chilean section of Trotskyist Fraction – Fourth International. The party lost official registration after failing to meet the 5% minimum vote threshold in the 2021 elections.
Romina Del Plá is an activist in the Workers' Party (Argentina).
The Anticapitalist Workers' Left was a Trotskyist political party in Chile.
