This paper advocates for a societal analysis of political parties studied in the context of democratic regimes. Instead of emphasizing the autonomization of political parties, it proposes to appeal to social networks analysis in order to capture the blurry frontiers that characterize the social milieu on which political parties rely on. The objectivation of networks is not an easy task. For this reason, the present work insists on the necessity of developing localized and comparative analysis of political parties, exemplifying this proposal with the case of the Frssqench Socialist Party.