Progressive Era Repression and persecution Anti-war and civil rights movements Contemporary The Spark is a Trotskyist group in the United States aligned internationally with the Lutte Ouvrière tendency.

Spark originated as a "faction" within the Spartacist League that was attracted to the French group Voix Ouvrière's method of propagandizing in the factories.

[1] This tendency formally organized as "Spark" in 1971, with two locals in Detroit and Baltimore.

[2] The organization began a monthly magazine The Spark in July 1971, which became a biweekly in early 1976.

But we must be clear that the building of a revolutionary organization rooted in the working class comes before participation in any petty bourgeoisie movement".