This article examines the political transformations experienced by the Communist Party and the evolution of the radical left in France in the twenty-five years after 1989. Interpreting the Communist Party and Left Front as anti-establishment, that is, opposed to the political elite, but pro-system parties that are not interested in changing the nature of democratic governance. The peculiarities of French communism and its political philosophy are illustrated. Finally, this study considers the constituent process of the Front. At the beginning of the 21st century, the Front plays the role of a political federation to the left of the Socialist Party with positive electoral results.