Thousands gathered in Madrid's Plaza de Castilla to protest against the government of Pedro Sánchez, demanding immediate general elections.
The demonstration, organized by the Platform for Constitutional Spain, saw participation from right-wing and far-right groups, including leaders from Vox and the People's Party (PP).
Santiago Abascal, leader of Vox, expressed willingness to support a no-confidence motion against Sánchez, even with votes from Junts, provided there are no concessions to the independents.
The protestors accused Sánchez's government of corruption and criticized its alliances with independentist groups.
The event highlighted a growing call for change, with speakers urging respect for judicial independence and the constitution.
The protest, attended by an estimated 25,000 people, underscored the political tension and demand for accountability in Spain.