Sumar is experiencing an internal crisis that is surfacing bit by bit through accusations, resignations, and confrontations within its leadership. The party's stability has once again been shaken after this Monday, the former organizational secretary of the party, Laura Moreno, resigned from her position denouncing a series of "injustices," "disrespects," and episodes of exclusion within the party.
In her farewell letter, the leader also revealed the existence of an internal investigation against the general coordinator, Lara Hernández, for alleged mistreatment of several party workers.
Moreno's departure occurs at a particularly delicate moment for the party. The Coordinating Group, Sumar's highest leadership body, will hold a telematic meeting this coming Thursday to address the call for the party's next general assembly, initially scheduled for July 11.
Its objective: to renew its leadership and define its political roadmap after the withdrawal of the second vice president and Minister of Labor, Yolanda Díaz, as the figurehead of the space occupied by Sumar.
A Resignation That Shakes the Leadership
The scandal broke on Monday, but internal friction dates back further. Moreno, who held the position of Organizational Secretary since April 2025, revealed after resigning that her situation within the party had progressively deteriorated until she was excluded from strategic decisions and relevant management areas.
In the document sent to the members of the Coordinating Group, the leader directly blamed Lara Hernández for her marginalization within the organization and denounced internal practices that she considers incompatible with the party model approved during the constituent assembly.
Furthermore, she maintained that there were attempts to isolate her politically after she advocated for changes in leadership and questioned certain decisions made by the core leadership.
Investigation for Alleged Workplace Harassment
The most serious revelation in the letter refers to an internal investigation opened against Hernández, initiated by several organic and political officials of the party.
According to Moreno, the complaint would be related to behaviors considered "worrying" towards party workers, linked to a possible case of workplace harassment.
From the coordinator's circle, they categorically reject these accusations. Sources close to Hernández assure Europa Press that no humiliating behavior has occurred and maintain that the leader has provided documentation to demonstrate this within the internal procedure opened.
The same sources consider that the dissemination of these complaints responds to a "political operation" to discredit her and weaken her leadership before the next assembly.
War for party control
The resignation letter also includes complaints about alleged irregularities in the election process for the regional leadership of Sumar in the Valencian Community.
Moreno even speaks in her letter of "fraud" in said procedure, an accusation that the leadership flatly rejects. The sector aligned with Hernández, for its part, maintains that only a technical correction of the census occurred and that the discrepancy responds to internal political differences.
The clash between currents intensifies
Sources close to Lara Hernández assure that since Yolanda Díaz's departure, there has been an internal offensive to remove leaders identified with the so-called "yolandismo".
According to this interpretation, certain sectors of Sumar would be taking advantage of the call for the next assembly to contest the party's leadership and displace those who still maintain influence within the structure inherited from the second vice-president of the Government.
Internal tension has also been fueled by other relevant departures recorded in recent months, including those of Íñigo Errejón, Elizabeth Duval, María Eugenia Rodríguez Palop, and Yolanda Díaz herself as the party's highest organic leader.
Elizabeth Duval calls for Hernández's resignation
The controversy escalated further after this Monday, when former Sumar leader Elizabeth Duval publicly called for Lara Hernández's resignation.
Through her official profile on X, Duval accused the coordinator of violating internal statutes and considered it incompatible for her to aspire to renew her leadership while an investigation related to alleged workplace harassment conduct remains open.
"I resigned as coordinator of Communication for Sumar more than a year ago. In the year that has passed since then, the following have resigned: the Secretary of Organization, the Secretary of Communication, and even the co-general coordinator. I wonder who will be responsible for the mess!", asserts the former leader of the party on social media.
Yo dimití como coordinadora de Comunicación de Sumar hace ya más de un año. En el año transcurrido desde entonces, han dimitido: la secretaria de Organización, el secretario de Comunicación y hasta el cocoordinador general. ¡Me pregunto quién será responsable del destrozo! https://t.co/Zj05FF8l3s
— Elizabeth Duval ☀️ (@_elizabethduval) June 9, 2026
The crisis erupts just a few days before that online meeting in which the formal call for the next state assembly will be studied.
On July 11, Sumar will have to choose a new leadership and define its strategy, as well as its relationship with other left-wing forces such as Izquierda Unida, Más Madrid, and Comuns.
An event that, far from strengthening the organization, now threatens to become an internal power struggle for control of the party, amid cross-accusations and resignations that once again question the cohesion of the project promoted by Yolanda Díaz.