
- Jul 11
Sumar elects Verónica Martínez Barbero and Rosa Martínez as new co-leaders in post-Díaz era
The party founded by Yolanda Díaz installs its first leadership without her involvement, approving a new political document and preparing for 2027 elections with 95.92% support for the only list.

- Jul 1
Sumar replaces more than half its leadership as Yolanda Díaz and Lara Hernández depart
The Spanish left-wing party Movimiento Sumar will replace 34 of its 65 executive members at an extraordinary assembly on July 11, after founder Yolanda Díaz and coordinator Lara Hernández both quit the leadership amid a toxic internal feud.

- Jun 26
Verónica Martínez Barbero and Rosa Martínez launch joint bid to lead Movimiento Sumar amid internal crisis
Verónica Martínez Barbero, Sumar's parliamentary spokesperson, and Rosa Martínez, State Secretary for Social Rights, have announced a joint candidacy to lead Movimiento Sumar at the party's extraordinary congress on 11 July, as the formation seeks to overcome months of internal conflict.
