Socialist Labor Party


The Socialist Labor Party of America (since 1890) has earned and kept the respect of friend and foe alike for its unwavering dedication to the fundamental principles of scientific socialism as developed by Karl Marx, Frederick Engels and its own Daniel De Leon. 

The socialism we aim for, as De Leon described it, “is that social system under which the necessaries of production are owned, controlled and administered by the people, for the people, and under which, accordingly, the cause of political and economic despotism having been abolished, class rule is at end. — That is socialism, nothing short of that.” 

The SLP relies entirely on the voluntary contributions of its working-class members and supporters for the financial support it needs to conduct its work. As working men and women ourselves, we fully appreciate the value of every donation we receive. 

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Contributions to political parties are not tax deductible.

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Socialist Labor Party

P.O. Box 218
Mountain View, CA 94042-0218