Leaders included Evald Höglund and Gottfrid Nyberg.
RS became the first Swedish section of the Fourth International.
RSP was active in the 1950 municipal elections in Stockholm (where they received 1,900 votes) and during the dockers' strike of 1951.
Soon the leadership of FI ordered RSP to enter SAP and practice fraction politics, entryism, within this party.
This article about a Swedish political party is a stub.