Leon Trotsky Fourth International
Marxism Leninism Russian Revolution
Prominent Trotskyists James P. Cannon Tony Cliff Pierre Frank Ted Grant Joseph Hansen Gerry Healy C. L. R. James Pierre Lambert Livio Maitan Ernest Mandel Nahuel Moreno Max Shachtman
Trotskyist groups CWI · FI(ICR) · ICFI IMT · IST · IWL reunified FI
Branches Orthodox Trotskyism Third camp
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