In Valladolid, former Spanish Prime Ministers Pedro Sánchez and José Luis Rodríguez Zapatero rallied the Socialist Party's base on the eve of regional elections in Castilla y León, emphasizing their longstanding commitment to the anti-war stance. The event sought to energize leftist voters amid a politically charged atmosphere as the Popular Party (PP) appears to be gaining ground, while Vox is reportedly nearing 20% support, and the PSOE struggles to maintain its position. Local party leaders, including former mayor Óscar Puente, joined in to strengthen the message and combat the influence of the right-wing electorate.

Sánchez made a direct reference to the historical context of the Iraq War as part of his campaign strategy, invoking Zapatero's leadership and firm stand against the war two decades earlier. This nostalgic narrative serves to remind voters of the principles of peace and justice, contrasting sharply with the PP's narrative, which often leans towards its former leader José María Aznar. With the PP dominating Castilla y León for almost 40 years, Sánchez's remarks aim to inspire a sense of urgency and importance among progressive voters to prevent a repeat of history where right-wing policies prevail.

The campaign in Castilla y León is not only a local contest; it represents a broader struggle between left and right in Spain. Sánchez and Zapatero's appearance underscores the importance of unity among the left to rally against a rising right-wing sentiment that is gaining traction, particularly through the populist messages of parties like Vox. As the elections draw near, the PSOE's strategy revolves around reviving past narratives of peace and social justice while simultaneously addressing contemporary grievances regarding social cohesion and effective governance in the region.