Tomorrow's Aragon elections are pivotal to measure the decline of PSOE and are predicted to reflect the worst historical result for them.
The figure of Pilar Alegría, the socialist candidate, will be under scrutiny.
Pedro Sánchez has made controversial decisions that have fuelled Vox's populism and a significant backlash against the PSOE is expected.
Despite the discontent with the PSOE, the PP faces its own challenge with the rise of Vox, which could necessitate a pact between the two.
These elections could yield an indicator of future voting trends due to the characteristic political fragmentation of Aragon.
Conclusion: The Aragonese elections represent a critical juncture for the Socialists and for Pedro Sánchez, and could see a significant shift to the right if Vox continues to successfully grow.