Investigations have led to a conclusion about the PSOE's involvement in paying for Leire Díez's trips. The goal of these payments was reportedly to influence investigations that impact those close to Pedro Sánchez. According to investigators, a key figure in the party's organization played a role in approving these trips.

Santos Cerdán, as the person in charge, verbally authorized any travel requests made by the former socialist militant. Further details about this situation are available from the source, El Mundo. The investigation's findings suggest a connection between the PSOE's actions and an attempt to affect the outcome of certain investigations.