During his adolescence he joined the Italian Socialist Party, of which he became suddenly a national leader at the head of the revolutionary wing, known as Massimalisti; other notable members of this far-left wing were Costantino Lazzari and Benito Mussolini. In 1919 Bombacci became the Secretary of the PSI and in the general election in the same year he led the socialists to their best result ever; the PSI won the election with 32.3% and became the first party by votes and seats. Anyway the following year Bombacci resigned as Secretary of the Socialist Party, due to some tensions with the right-wing of the party led by Filippo Turati.
In 1921 he became one of the founding fathers of the Communist Party of Italy.. Bombacci was a friend of future Italian Fascist dictator Benito Mussolini. He was expelled from the Communist Party in 1927 for embracing a pro-Fascist position. From 1927 onwards Bombacci became an open Fascist, although he never officially joined the National Fascist Party. After Mussolini was ousted as Prime Minister of the Kingdom of Italy in 1943, Bombacci remained loyal to Mussolini and tried to help him legitimize the Italian Social Republic and relegitimize Italian Fascism.
Italian Social Republic
From his days in the Socialist Party as a fellow Massimalisti, Bombacci was a friend of Mussolini. In the La Verità journal in 1936, Bombacci confessed “his adhesion to Fascism but also to Communism,” writing: “Fascism has made grandiose Social Revolution, Mussolini and Lenin, Soviet and Fascist corporate state, Rome and Moscow. Several stands already taken had to be rectified, we have nothing of which to ask pardon for as both in present and past we are impelled by the same ideal: the triumph of work.” Later in life, although he was not an official card-carrying member of the National Fascist Party, Bombacci tried to help Mussolini legitimize the Italian Social Republic and relegitimize Italian Fascism after Mussolini was ousted as Prime Minister of the Kingdom of Italy. He was the author of the economic theory of socialization in 1943. Nicknamed “the Red Pope”, Bombacci told a crowd in Genoa in 1945 that “Stalin will never make socialism; rather Mussolini will.”
Death
Bombacci was shot on 28 April 1945 at Dongo where he had been captured - along with Mussolini - by Italian communist partisans. He was summarily shot alongside Mussolini. Before his execution, Bombacci shouted out “Long live Mussolini! Long live socialism!” After his death, he was hung upside down at Piazzale Loreto in a public display, along with Mussolini, Clara Petacci, the head of the Republican Fascist PartyAlessandro Pavolini, and others. Four days after his death, his old friend and comrade Victor Serge read of the event in a newspaper in Mexico, where he was living in exile, and wrote several thoughtful pages in his journal describing the life and difficult choices of this complex man. Engaging in what he called "practical psychology", Serge tried to imagine how a former communist could become a fascist: "Among some Italians, particularly among the ex-Marxists and ex-syndicalists, two visions became apparent: that with the liberal democracies exhausted and socialism weakened, the corporatist regimes were going to impose their new formulas; and that through this narrow gate would pass collectivism, the precondition for a socialism different from that desired by the nineteenth century,... corresponding better to man's basic nature."
