The day was dominated by the UCO raid on PSOE headquarters in Ferraz, a dramatic escalation in the corruption investigations. Early morning headlines reported the Guardia Civil entering the party's seat over alleged illegal financing linked to Leire Díez and the SEPI case. By mid-morning, Judge Pedraz had imputed party secretary Santos Cerdán, former official Gaspar Zarrías, and the PSOE manager, while the operation expanded to the Guardia Civil's own headquarters. Sánchez, returning from a Vatican meeting, minimized the raid, reaffirmed support for Zapatero, and ruled out early elections. Afternoon reports detailed the judge's auto alleging the PSOE paid over 180,000 euros via fake invoices to destabilize judicial probes, tracing the plot to Sánchez's 'Carta a la Ciudadanía' after Begoña Gómez's imputation. The UCO remained in Ferraz for over 12 hours, with Feijóo calling the situation 'agonizing' and demanding immediate elections.