Since 2018, the deputy from Seine-et-Marne has led the Parti Socialiste (PS), or Socialist Party, navigating a challenging political landscape. Leading a major political party in France requires balancing internal disagreements while maintaining a unified front, especially in a country with a fragmented left-wing spectrum. The deputy has managed to stay in power by adapting to changing circumstances and emphasizing the importance of unity among left-wing groups. The Socialist Party has faced significant challenges in recent years, including internal divisions and the rise of new political movements on the left. These developments have made it difficult for the PS to maintain a clear identity and consistent policy direction. Despite these difficulties, the deputy from Seine-et-Marne has worked to keep the party cohesive and relevant in French politics. One of the key aspects of the deputy's leadership has been their ability to respond to shifting political tides without abandoning the core principles of the party. This has involved making strategic compromises while still advocating for the party's traditional values. The deputy's approach has been tested by various events, including national elections and policy debates, all of which have required careful negotiation and leadership. The deputy's tenure has been marked by a focus on solidarity among left-wing forces, recognizing that a divided left can be vulnerable to political challenges. By promoting unity, the deputy has aimed to ensure the PS remains a strong and influential force in French politics, even as it faces competition from both traditional and emerging political actors.