It maintained a clear anti-monarchical position and it was opposed to Palmiro Togliatti and the Italian Communist Party's Salerno Initiative for postwar governance. The party adopted the symbol of a flaming sword and in the immediate post-war period joined the government securing the post of Prime Minister for Ferruccio Parri from June to November 1945. As a result of the internal conflict between the democratic-reformist line of Ugo La Malfa and the socialist line of Emilio Lussu, combined with the electoral defeat of 1946, the party folded.
The party maintained a strong anti-monarchical stance and opposed the Italian Communist Party's Salerno Initiative for postwar governance. The party adopted a flaming sword as its symbol and, in the immediate post-war period, joined the government, securing Prime Minister Ferruccio Parri's position from June to November 1945. Internal conflict between Ugo La Malfa's democratic-reformist line and Emilio Lussu's socialist line, coupled with electoral defeat in 1946, led to the party's dissolution.