The article focuses on the analysis of two recent parties (the Republic in March and France Insoumise), which present themselves as movements, created on the occasion of the presidential election of 2017. It focuses on their models of internal democracy that are very close to and break with the forms of democracy of so-called “traditional” parties such as the Socialist Party. The decision-making processes of these parties are highly centralized. Members’ voting rights as well as rights to nominate candidates and leaders are limited, although they have a high degree of autonomy at the grassroots level. Beyond their ideological differences, these parties are presidentialized partisan enterprises structured around their leaders.