After Gaston Defferre's catastrophic result in the 1969 presidential election, the SFIO was replaced by the Socialist Party (PS), formed by the SFIO's merger with an array of political clubs on the democratic left. Two years later, François Mitterrand's Convention of Republican Institutions joined the PS.
After Gaston Defferre's poor showing in the 1969 presidential election, the SFIO was replaced by the Socialist Party (PS), which was formed through the combination of several left-leaning political organizations. Two years later, François Mitterrand's Convention of Republican Institutions joined the PS.