French socialism began to distinguish itself both from Proudhon’s anarchistic appeal to humanity’s moral responsibilities and from Blanqui’s insurrectionism in the 1890s. Founded by Blum, Jaures and Vaillant in 1905 in the aftermath of the Dreyfus affair, the SFIO united left reformist republicans and Marxist sectarians. The alliance broke up in 1920 when a majority at the Tours Conference voted to affiliate to the new Communist International.
Despite being a minority at that SFIO conference, the SFIO of left reformist socialism became the leading left political current through nearly all the interwar period. After the Communist Party ended Stalin’s ‘class against class’ propaganda against the Socialists and proposed a Popular Front alliance, Blum became prime minister in 1936.
Under the Fourth Republic its internal divisions over Algerian independence, with Mendes France and the challenge of the stronger Communist Party allowed De Gaulle to take power. In 1981 Mitterrand won a decisive majority on a left platform that he abandoned three years later. From then the Socialist Party became largely a party of elected national and local officials, without any real mass membership. In 2017, following five politically disastrous years under Hollande, the Socialist Party suffered a major defeat in both the presidential and National Assembly elections. A new left party, La France Insoumise (France untamed), did relatively well, with the Left Front’s presidential candidate getting 19.6% of the vote in the first round.
Like the Socialists, though, Melonchon’s La France Insoumise has still virtually no local membership base. In the European elections of 2019, its share of the vote fell to 6%.
Work in progress