 Socialist Party of Oregon

The Socialist Party of Oregon (SPO) is the name of three closely related organizations — an Oregon state affiliate of the Social Democratic Party of America (later the Socialist Party of America) established in 1897 and continuing into the 1950s, as well as the Oregon state affiliate of the Socialist Party USA from 1992 to 1999.The Socialist Party of Oregon traces its roots to the late 1890s, when local affiliates of the Socialist Party's antecedent, the Social Democratic Party (SDP) first emerged.