EntityQ1351850· pop 17· linked from 448 articlesJames Patrick CannonSign in to saveAmerican politician (1890-1974)ConnectionsCommunist Party of the United States of AmericaEntityLeon TrotskyEntityRussian RevolutionEntitysocial democracyEntityCommunist InternationalEntityMarxism–LeninismEntityCommittee for a Workers' InternationalEntityentryismEntityCharles Emil RuthenbergEntityMichel PabloEntityInternational Committee of the Fourth InternationalEntityInternational Communist League (Fourth Internationalist)EntityFourth InternationalEntitylist of Trotskyist internationalsEntityRomaniaCountryWorld War IIConceptCaliforniaEntityLos AngelesEntityWorld War IConceptMartin Luther King Jr.PersonCategories1890 births1974 deaths20th-century American male writersActivists from KansasAmerican anti–World War I activistsAmerican anti–World War II activistsAmerican AtheistsAmerican Comintern peopleAmerican male non-fiction writersAmerican MarxistsAmerican political party foundersAmerican political writers