The Spanish left alliance known as Sumar is undergoing a significant reestablishment, yet it faces considerable uncertainties regarding leadership, branding, and its national project identity. As Sumar grapples with these pivotal questions, it becomes clear that the alliance is more of an emotional response rather than a firmly structured political front at this stage. Despite being branded as a new entity, Sumar finds itself intertwined with past narratives and complexities as various parties like IU, Movimiento Sumar, Más Madrid, and Comunes try to carve out a cohesive identity in the political landscape.

At this moment, the new Sumar aims to rekindle hope and provide a counter-narrative to the prevailing resignation among the left's base, promoting unity against the backdrop of the PSOE's dominance. The organizations involved seem eager to agitate for change but lack a solid governance framework that would typically ensure such change is effective. This predicament is not just a mere logistical issue; it reflects a deeper existential crisis among the left, showcasing the struggle for relevance within a polarized political atmosphere in Spain.

Looking ahead, the key questions that need addressing involve who will take the helm of Sumar, what the electoral branding will be going forward, and how the coalition will differentiate itself in terms of policy and ideology. These elements are crucial for Sumar's ability to mobilize support effectively and establish a lasting presence in the political spectrum, especially in light of the historical challenges and fragmentation facing the left in Spain. Until these issues are resolved, Sumar persists in its ambivalence, reflecting concerns over leadership and ideological clarity, crucial for its future viability and political impact.