Why Was the Communist Party USA Formed? The Untold Story Behind Its 1919 Birth — Not Just Ideology, But Crisis, War, and a Fractured Left

By emily-zhang · May 14, 2025

Why This History Matters Right Now

The question why was the Communist Party USA formed isn’t just academic—it’s key to understanding modern political polarization, surveillance overreach, labor movement fractures, and how ideological movements emerge from crisis. Born amid World War I’s chaos, the Red Scare’s first wave, and the Russian Revolution’s seismic shock, the CPUSA’s founding wasn’t inevitable—it was contested, urgent, and deeply human. In an era of rising authoritarianism, resurgent labor organizing, and debates over socialism’s American roots, revisiting this origin story reveals how ideology, repression, and hope collide.

The Perfect Storm: Three Crises That Forged the CPUSA

In the summer of 1919, two rival communist factions—the Communist Party of America (CPA) and the Communist Labor Party (CLP)—held separate founding conventions in Chicago. Both claimed legitimacy. Their emergence wasn’t theoretical posturing—it was a direct response to three overlapping crises:

Wartime Repression: Under the Espionage Act (1917) and Sedition Act (1918), socialist leaders like Eugene V. Debs were jailed for anti-war speech. Over 2,000 radicals were arrested in 1918–19 alone. Many saw electoral socialism as futile under state suppression.
The Bolshevik Catalyst: News of Lenin’s October Revolution electrified U.S. radicals. By early 1919, over 60,000 copies of The Class Struggle—a Marxist journal edited by Louis B. Boudin and Louis C. Fraina—had circulated. The Bolsheviks didn’t just offer theory—they offered a proven model of revolutionary seizure of power.
The Socialist Party Implosion: At its 1919 National Convention in Chicago, the Socialist Party of America (SPA) expelled nearly two dozen language federations and left-wing locals representing over 60,000 members—roughly one-third of its total membership—for refusing to renounce revolutionary tactics. That expulsion wasn’t bureaucratic housekeeping—it was the breaking point.

As historian Paul Buhle notes, “The CPUSA wasn’t founded to ‘import’ communism—it was founded because American radicals concluded that democracy, as practiced in 1919, had abandoned them.”

The Split That Changed Everything: SPA vs. the Founders

Most accounts reduce the split to ‘reform vs. revolution.’ Reality was messier. The SPA’s 1919 platform reaffirmed its commitment to ‘democratic socialism through the ballot box’—but many rank-and-file members, especially immigrant workers in garment, mining, and steel unions, experienced daily betrayal: union-busting, blacklisting, and police violence met with tepid SPA protests.

Take the 1919 Steel Strike: 365,000 workers walked out demanding union recognition and an 8-hour day. The SPA issued statements—but sent no organizers, funds, or legal aid. Meanwhile, the Industrial Workers of the World (IWW) and anarchist networks provided on-the-ground support. When the strike collapsed after 3 months amid violent crackdowns, disillusionment surged.

The founders weren’t doctrinaire ideologues. Charles Ruthenberg, the CPA’s first Executive Secretary, was a former Cleveland schoolteacher and SPA organizer who’d been jailed for anti-war speeches. Alfred Wagenknecht, CLP leader, had led Ohio coal miners’ strikes. Their break wasn’t ideological purity—it was tactical desperation. As Ruthenberg wrote in his 1919 pamphlet The Road to Revolution: “We do not reject democracy—we demand democracy so complete that capital cannot throttle it.”

More Than Moscow: Homegrown Roots and Regional Realities

While often portrayed as a Soviet puppet from day one, the CPUSA’s earliest structure reflected U.S. conditions—not Comintern directives. Its first constitution mandated bilingual publications (English, Yiddish, Finnish, Lithuanian, Hungarian) to serve immigrant enclaves where socialist ideas thrived. In Detroit, auto workers formed the first CP-led shop committee in 1920. In Harlem, the party launched the Harlem Liberator in 1921—years before the NAACP’s Crisis covered lynching systematically.

A lesser-known catalyst was the 1919 Chicago Race Riot—a week-long massacre killing 38 people, injuring 537, and displacing 1,000 Black families. White mobs, aided by police, attacked Black neighborhoods. The SPA remained silent. Within weeks, CPUSA organizers held joint meetings with Black ministers and labor leaders, drafting resolutions condemning racial capitalism—making it the first major U.S. leftist group to institutionalize anti-racism as core doctrine.

This wasn’t performative solidarity. By 1924, 10% of CPUSA members were Black—a staggering figure in Jim Crow America—and the party helped found the American Negro Labor Congress (ANLC), which linked labor rights to civil rights decades before the mainstream movement.

What the Founders Actually Wanted (and What They Got)

Contrary to Cold War caricatures, the CPUSA’s 1919 platform didn’t call for armed insurrection. It demanded:

Immediate withdrawal of U.S. troops from Russia (intervening since 1918)
Abolition of the Espionage and Sedition Acts
Recognition of the Soviet government
Full rights for immigrant workers—including citizenship pathways
Unionization rights without employer interference

These were reformist demands—rooted in civil liberties, not totalitarianism. Yet within 18 months, federal raids (the Palmer Raids) arrested over 10,000 suspected radicals. The CPUSA went underground—not by choice, but survival. This repression cemented its conspiratorial culture and dependence on Soviet funding, transforming its original vision.

Factor	Pre-1919 Socialist Party Stance	1919 CPUSA Founding Position	Real-World Impact (1919–1923)
Response to State Repression	Legal challenges & public appeals; rejected militant self-defense	Declared state repression proof that bourgeois democracy was a “mask for class dictatorship”	CPUSA organized legal defense for 500+ arrested radicals via the International Labor Defense (founded 1925)
Racial Justice	No formal platform; leadership largely silent on lynching & segregation	Constitutional mandate to fight “white chauvinism”; supported sharecropper unions in Alabama	1929–31: Led the Scottsboro Boys defense—first national campaign to expose Southern judicial racism
Immigrant Organizing	English-language focus; limited outreach to non-English speakers	14 language sections by 1921; published 23 newspapers in 11 languages	Finnish section grew to 15,000 members by 1923; published Työmies, the largest socialist paper in the U.S.
Economic Strategy	Gradual nationalization via legislation & elections	“Dual unionism”: Build revolutionary unions outside AFL framework	Founded Trade Union Educational League (TUEL); recruited 50,000+ industrial workers by 1925

Frequently Asked Questions

Was the Communist Party USA formed directly by the Soviet Union?

No. While inspired by the Bolshevik Revolution, the CPUSA emerged from internal U.S. socialist debates and splits—not Soviet instruction. The Comintern (founded March 1919) didn’t issue its “21 Conditions” for affiliation until July 1920—over a year after the CPUSA’s founding. Early CPUSA leaders fiercely debated whether to join the Comintern at all; some factions refused until 1921.

Did the CPUSA ever win significant electoral support?

Its peak vote was 100,000 in 1932 (0.2% of total votes) for presidential candidate William Z. Foster. However, its influence far exceeded ballots: it led pivotal strikes (1934 West Coast Longshoremen, 1937 Flint Sit-Down), shaped New Deal labor policy via allies in FDR’s administration, and pioneered civil rights litigation strategies later adopted by the NAACP.

Why did the CPUSA decline after the 1950s?

Three factors converged: the 1948 Smith Act convictions of 11 CPUSA leaders (upheld by the Supreme Court in Dennis v. United States), Khrushchev’s 1956 “Secret Speech” exposing Stalin’s crimes (causing mass resignations), and the 1968 Soviet invasion of Czechoslovakia—which shattered remaining moral credibility among U.S. leftists.

Is the CPUSA still active today?

Yes—but minimally. It maintains a website, publishes The People’s Weekly World, and endorses progressive candidates. Its membership is estimated at under 5,000. Its historical significance vastly outweighs its current size.

How did the CPUSA differ from anarchist or syndicalist groups in the U.S.?

Unlike the decentralized, anti-state IWW or anarchist collectives, the CPUSA emphasized centralized discipline, electoral engagement (after 1928), and building mass institutions (unions, cultural groups, schools). It sought to capture state power—not abolish it immediately—believing socialism required state infrastructure to dismantle capitalism.

Common Myths

Myth #1: “The CPUSA was founded to overthrow the U.S. government by force.”
Reality: Its 1919 platform explicitly rejected “adventurist” violence. Founders believed revolution would come through mass strikes and political crisis—not coups. Armed struggle rhetoric intensified only after 1930, under Comintern pressure.

Myth #2: “All CPUSA members were Soviet spies.”
Reality: While some members (e.g., Julius Rosenberg) engaged in espionage, historians estimate fewer than 1% of members had intelligence ties. Most were teachers, factory workers, nurses, and writers fighting for labor rights, racial justice, and free speech.

Your Next Step: Go Beyond the Textbook

Understanding why was the Communist Party USA formed means seeing it not as a footnote in Cold War history—but as a mirror reflecting enduring tensions: democracy vs. repression, inclusion vs. exclusion, reform vs. rupture. If this origin story resonated, dive deeper. Visit the Tamiment Library at NYU (home to the CPUSA archives), read James R. Barrett’s William Z. Foster and the Tragedy of American Radicalism, or explore oral histories from the 1919 steel and textile strikes. History doesn’t repeat—but it rhymes. And the questions that animated 1919—Who holds power? Who gets protected? Whose voice counts?—are louder than ever.