He was involved in the Vietnam Solidarity Campaign and outraged many leftists when, at a meeting in the Conway Hall, he denounced Ho Chi Minh for murdering the leader of the Vietnamese Trotskyist movement, Ta Thu Thau, in 1945 after crushing the workers' rising of that year in Saigon.
A Trotskyist, Barker was a member of the International Socialism Group in Oxford and Manchester from 1962.
The Proletarian Society of China periodical The Trotskyist, China/Hong Kong, was close to the CRFI.
He is a member of IWW, NUM, Class War and formerly of the Revolutionary Workers' Party (Trotskyist) and the Socialist Union (Internationalist) of which he was a leading member .
Trotskyist historian Pierre Broué noted that Trotsky had misinformed the Commission, claiming to have had no contacts with oppositionists inside the USSR to form a bloc (one of the charges of the Moscow Trials) despite being reminded during the Commission by his secretary, Jean van Heijenoort, of the opposite being the case.
A Trotskyist and outspoken atheist, he is a prominent member of the Socialist Workers Party in Ireland, and in recent Northern Ireland elections has stood as a candidate for the Socialist Environmental Alliance.
In the 1930s, Frank Lovell came into contact with Trotskyist movement led by James P. Cannon and he became one of the first members of the Socialist Workers Party, and in 1942 he was elected to its National Committee.
Feldman came into political activity through the Student Peace Union at the University of Pennsylvania, which was led by supporters of the Trotskyist Young Socialist Alliance such as Feldman and Robin Maisel.
Lajoinie was faced with competition for the far-left vote by a "reforming Communist", Pierre Juquin and a Trotskyist, Arlette Laguiller.
Barnes' article Their Trotsky and Ours also underpinned the party's decisions in the 1980s to abandon its support for Leon Trotsky's theory of Permanent Revolution, and its withdrawal from the world Trotskyist movement and the reunified Fourth International.
At the last of these sessions, John Gates, editor of the official party newspaper, The Worker, was sharply critical of the American party's blind obedience, its support of its Trotskyist opponents under the Smith Act, and its failure to commit itself to a peaceful path to socialism based upon maintained civil liberties.
It has the claiming membership of 7,300 members in 2009, which originates from the Trotskyist tradition.
League for the Fifth International, an international grouping of revolutionary Trotskyist organisations
Lucienne Abraham (1916 – 1970), also known as Michèle Mestre, was a French Trotskyist politician.
Sautet was a former Trotskyist who however edited two books on the German philosopher and philologist Friedrich Nietzsche.
International Marxist Group (Ger.: Gruppe Internationale Marxisten), a Trotskyist group in West Germany
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International Marxist Group, a Trotskyist political party in Britain between 1964 and 1987
In 1970 the organisation started going through a process of ideological and organisational fragmentation, with some members leaving to form new groups, such as Avangard, with a Trotskyist orientation, led by Menahem Carmi and Sylvain Cypel, and Ma'avak (Revolutionary Communist Alliance), with a Maoist orientation, led by Ilan Albert and Rami Livneh.
Siegel participated in the first Trotskyist delegation allowed to visit the Soviet Union during the Glasnost era.
Finally, those who were disappointed by the "Plural Left" voted for the Trotskyist candidates (Arlette Laguiller, Olivier Besancenot, Daniel Gluckstein).
Julien Dray and Jean-Luc Mélenchon ("Socialist Left") were former trotskyists who criticized the "opening" to center-right politicians
Richard S. Fraser, American Trotskyist and revolutionary integrationist
Matgamna, working with two supporters, formed the Workers' Fight group to act upon his views, central to which was a call for Trotskyist unity in Britain.
It has also been suggested that he was the mastermind behind the murder-decapitation of the Trotskyist leader of the Fourth International, Rudolf Klement, in France in July 1938, and the murder of the defector Georges Agabekov in France in 1937.
Socialist Appeal (US, 1935) - a newspaper published first by a Trotskyists from 1935 to 1941, first by the Trotskyist faction in the Socialist Party of America and, following their expulsion by the newly founded Socialist Workers Party.
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Socialist Appeal (UK, 1992) - the current British Trotskyist organization and newspaper founded in 1992 and affiliated with the International Marxist Tendency.
Betty Hamilton, an SLL founder and a Trotskyist since the 1930s, had sided with Lambert in 1971 but remained isolated, although still formally an SLL member until 1974.
The second Socialist Outlook was the publication of the International Socialist Group, the Trotskyist organisation which was the British section of the Fourth International between 1987 and 2009.
The term, often used pejoratively by liberal anti-fascists eschewing physical violence, originated in the Anti-Nazi League, a broad-based anti-fascist campaigning organisation dominated by the heterodox Trotskyist Socialist Workers Party (SWP).
At UCL, he met Anil Moonesinghe, a Sri Lankan Trotskyist, who was later to become a Cabinet Minister in Sri Lanka) and joined the Socialist Review Group led by Tony Cliff, a former member of the Revolutionary Communist Party (RCP), which later became the Socialist Workers Party (SWP).
A relatively recent text by Stephen Resnick and Richard D. Wolff, Class Theory and History, explores what they term state capitalism in the former Soviet Union, continuing a theme that has been debated within Trotskyist theory for most of the past century.
Trotskyist writer Samuel Farber, a long-time supporter of the International Socialist Organization in the US, has argued that the internal party regime established by Cliff during this period is "reminiscent of the one established by Zinoviev in the mid-twenties in the USSR" consequently leading to the various crises and splits in the group later on.
Mayor Robert Hood Saunders faced only fringe candidates: Frank O'Hearn, who would go on to found the New Capitalist Party, and Trotskyist Murray Dowson.
David Widgery (1947–1992), British Trotskyist writer, journalist, polemicist, physician, and activist