PSOE and Frente Amplio met in Madrid on 11 October but failed to reach a detailed pact for the 29 November Senate election, with the first deadline approaching on 16 October. By then, parties must notify the authorities that they intend to stand as a coalition.
The talks were intended to examine joint lists that could challenge the PP's absolute majority in the upper chamber. EFE reported that details of any possible arrangement remained undisclosed. Even the narrower option of coordinating in selected provinces remained out of reach.
PSOE wants to coordinate seats with left-wing parties and cut the PP's advantage in the Senate. Its proposal focuses especially on smaller provinces where Frente Amplio has little chance of winning a seat. Socialists argue that leaving PSOE as the only left-wing ballot in those constituencies could improve its chances of finishing ahead of the PP.
The strategy is based on the provincial Senate voting system. When left-wing support is split, the largest list can gain an advantage. The parties were discussing targeted coordination, not necessarily a single nationwide list. PSOE has used local Senate agreements before, but extending such a pact across the country would be a new step.
Izquierda Unida has already pushed back, rejecting withdrawals from smaller provinces simply to strengthen the socialist list. That dispute leaves the Senate pact in doubt, with only a few days before the 16 October notification deadline.
The problem extends beyond the relationship between PSOE and Frente Amplio. The coalition has yet to settle its internal structure or choose its leading candidate. RTVE reported that PSOE's federal committee was due to approve its lists and Pedro Sánchez's nomination as candidate for prime minister on 17 October. The final deadline for submitting candidacies was 26 October.
Pablo Bustinduy is no longer being considered. Ada Colau remains a possible option, but she insists that any agreement must include Podemos. That condition clashes with Más Madrid, which has already proposed its Madrid ticket, with regional deputy Emilio Delgado at the top and Mónica García in second place. The health minister is also among the names discussed to lead Frente Amplio.
Frente Amplio currently includes Movimiento Sumar. Izquierda Unida, Más Madrid and the Comunes are also part of the proposed bloc. ERC will not join it.
The Catalan republican party has settled on Gabriel Rufián as its candidate. He had previously been linked to a broader plurinational left-wing project and mentioned as a possible Frente Amplio leader. RTVE reported that Podemos could enter a wider common arrangement only after joining Frente Amplio.
Podemos remains another unresolved piece. The party considers Irene Montero indispensable to any deal after her exclusion three years ago. She wants to lead the electoral project and is seeking primaries in which members of all participating parties would choose the candidate.
The parties already inside Frente Amplio are wary of that method. They prefer an agreement between the organisations to a vote across the entire potential coalition. Without a formula, the left could appear as many as four separate options in some territories. The discussions focused on provinces where separate lists could hand additional Senate seats to the PP.
Andalusia shows the risk most clearly. PSOE, Frente Amplio, Podemos and Adelante Andalucía could compete separately there. The socialists have increased pressure on Adelante Andalucía after its performance in the last regional election helped prevent Juanma Moreno from securing an absolute majority. The party insists on maintaining its autonomy and staying outside any coalition.
Compromís will also run alone in the Valencian Community.
As reported by LA RAZÓN, PSOE's broader strategy depends on turning competing left-wing lists into a more efficient electoral arrangement. The negotiations have produced no such mechanism. The parties are still arguing over who belongs in the coalition and who should lead it, as the legal deadline approaches.
PSOE has said it is considering all alternatives and scenarios to improve its position in both Congress and the Senate. It also wants to end the PP's use of its upper-chamber majority, which the party has held for the last three years.
Reports published from 9 to 11 October said there was no agreed proposal or approved list of provinces for a possible pact. The parties had not settled the arrangement by the time those reports appeared.
