Trotskyism is the political ideology and branch of Marxism developed by Russian revolutionary and intellectual Leon Trotsky along with some other members of the Left Opposition and the Fourth International. Trotsky described himself as an orthodox Marxist, a revolutionary Marxist, and a Bolshevik–Leninist as well as a follower of Karl Marx, Frederick Engels, Vladimir Lenin, Karl Liebknecht, and Rosa Luxemburg. His relations with Lenin have been a source of intense historical debate. However, on balance, scholarly opinion among a range of prominent historians and political scientists such as E.H. Carr, Isaac Deutscher, Moshe Lewin, Ronald Suny, Richard B. Day and W. Bruce Lincoln was that Lenin’s desired “heir” would have been a collective responsibility in which Trotsky was placed in "an important role and within which Stalin would be dramatically demoted ".
The Fourth International (FI) was a political international established in France in 1938 by Leon Trotsky and his supporters, having been expelled from the Soviet Union and the Communist International.
Socialist Appeal was the British section of the International Marxist Tendency (IMT), founded in 1992 alongside the IMT by supporters of Ted Grant and Alan Woods after they were expelled from the Militant tendency of the Labour Party. In 2024 the Great Britain-based elements of the IMT were relaunched as the Revolutionary Communist Party.
The International Workers League (Fourth International) (Spanish: Liga Internacional de los Trabajadores (Cuarta Internacional), or LITci; Portuguese: Liga Internacional dos Trabalhadores - Quarta Internacional, or LIT-QI), also known as IWLfi, is a Morenist Trotskyist international organisation.
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.
The Revolutionary Socialist League (RSL) was a Trotskyist group in the United States established in 1973 and disbanded in 1989.
The Revolutionary Workers League was a Canadian Trostkyist party formed on 8 August 1977 by the fusion of the Revolutionary Marxist Group and its Quebec counterpart, the Groupe Marxiste Revolutionnaire, with the League for Socialist Action. The organization marked the reunification of the Canadian section of the Fourth International and had a membership of several hundred people. The group published a monthly newspaper in English, Socialist Voice, as well as a French-language publication, La Lutte Ouvrière.
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.
Permanent Revolution was a Trotskyist group formed in July 2006 by expelled members of the League for the Fifth International (L5I). It took its name from Leon Trotsky's theory of permanent revolution. The group dissolved itself on 28 March 2013.
In the context of Mexican politics, a national political association is a citizens' association intended to assist in the development of democratic life and the country's political culture, as well as being intended to create a better informed public opinion. They are similar to political parties; they used to receive public funding through the Federal Electoral Institute (IFE) for the promotion of their activities and ideas, but this was no longer the case after the 2008 political reform; after the 2014 political reform and the transformation of the IFE into INE, only political parties and independent candidates can receive public funding. APNs are not allowed to register candidates for election, though they can publicly support those of other political parties through association agreements and may only do so during federal elections. The creation of an APN is regarded as the first step towards the creation of a full-fledged political party.
Workers' Power is the German section of the Trotskyist League for the Fifth International. It publishes two periodicals: the monthly newspaper Neue Internationale and the theoretical organ Revolutionärer Marxismus.
The International Communist League (Fourth Internationalist) abbreviated as ICL(FI), earlier known as the international Spartacist tendency (iSt) is a Trotskyist international. Its largest constituent party is the Spartacist League (US). There are smaller sections of the ICL (FI) in Mexico, Canada, France, Germany, Ireland, Italy, Japan, South Africa, Australia, Greece and the United Kingdom.
The Workers Revolutionary Party (WRP) is a Trotskyist group in Britain once led by Gerry Healy. In the mid-1980s, it split into several smaller groups, one of which retains possession of the name.
The Alliance for Workers' Liberty (AWL), also known as Workers' Liberty, is a Trotskyist group in Britain and Australia, which has been identified with the theorist Sean Matgamna throughout its history. It publishes the newspaper Solidarity.
Permanent revolution is the strategy of a revolutionary class pursuing its own interests independently and without compromise or alliance with opposing sections of society. As a term within Marxist theory, it was first coined by Karl Marx and Friedrich Engels as early as 1850. Since then different theorists, most notably Leon Trotsky (1879–1940), have used the phrase to refer to different concepts.
Far-left politics in the United Kingdom have existed since at least the 1840s, with the formation of various organisations following ideologies such as Marxism, revolutionary socialism, communism, anarchism and syndicalism.
