The recent agreement between the PSC and ERC to invest Salvador Illa as the President of Catalonia has sparked significant controversy within the PSOE.

Leaders from Castilla-La Mancha and Aragón have expressed their outrage, labeling the deal as a "brutal break of equality" among Spaniards.

The pact proposes a unique financial system for Catalonia, akin to the Basque model, which many in the PSOE had previously opposed.

While the government celebrates the agreement as a triumph of dialogue, internal dissent grows, with some leaders warning that it could lead to the PSOE "handing over Spain" for Illa's investiture.

As ERC prepares for a crucial vote on the agreement, the PSOE faces mounting pressure to clarify its stance amid fears of alienating its regional bases.