Deze groepen waren de Arbeiders-Liberale Socialisten, Reformistisch Europa, de Siciliaanse Reformistische Beweging (allen afscheidingen van de Socialistische Partij van Italië), Republikeinse Links (afsplitsing Republikeinse Partij van Italië) en de Christen-Socialen (afscheiding van de Democrazia Cristiana).
The social-democratic majority was loosely organised, while including several organised movements: the Labourites – Liberal Socialists, Reformist Europe and the Sicilian "Reformist Movement", all three splinter groups of the Italian Socialist Party; the Social Christians, which had emerged from the left-wing of Christian Democracy; the Republican Left, from the left-wing of the Italian Republican Party; and the Liberal Left, from the left-wing of the Italian Liberal Party.WikiMatrix WikiMatrix