Valérie Pécresse, the president of Île de France Mobilités, is reportedly considering suspending the opening of the first line of the Grand Paris Express, a major public transportation project under development in the Paris region. The project aims to improve urban mobility by connecting various parts of the city through an extensive metro network. However, financial challenges have emerged, prompting discussions about potential delays or changes to the original plan. David Amiel, the Minister of Action and Public Accounts, has reportedly proposed a solution to replenish the funds of the Société des Grands Projets (SGP), the organization responsible for overseeing the Grand Paris Express. His suggestion involves withdrawing several tens of millions of euros from Île de France Mobilités, specifically from funds related to an additional stay tax. This tax is levied on visitors staying in the region for more than a certain number of nights, and the revenue is used to support transportation and other public services. Pécresse, however, has expressed dissatisfaction with this proposal. She is concerned about the financial implications and the potential impact on the project’s timeline and quality. The delays already announced at the end of the week on the construction sites of several lines—specifically lines 15 Sud, 16, and 17—will likely increase the project's costs. These delays have been attributed to various factors, including logistical challenges and the complexity of the engineering involved. Jean-François Monteil, the president of the SGP, has stated that the organization has some financial provisions to address the situation, but the French Ministry of Finance, known as Bercy, is also considering possible measures to support the project. The discussions highlight the ongoing financial and logistical challenges faced by large-scale infrastructure projects, particularly in urban areas where public transportation is crucial for economic and social development.