In the US, these advances in social reform are generally attributed to the liberal progressive wing of the Democratic party..of which comprise many 'socialists' , those who are politically inclined to be so. Socialism , as a movement around workers rights did have a significant following in the early 20th c..Eugene Debbs being the first ever Presidential Candidate and actually garnering a significant portion of the vote. Several US cities have had socialist mayors, and we have a socialist council member in Seattle, Kshama Sawant..who is outspoken on worker's rights..and we all know Bernie Sanders..who identifies as a socialist.