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.
Following Gaston Defferre's unsuccessful presidential bid in 1969, the SFIO was replaced by the Socialist Party (PS), which emerged from a merger of several left-leaning political groups. Two years later, François Mitterrand's Convention of Republican Institutions joined the PS.