Timeline Lead up to events For months, the internal situation within the PSOE remained at a standstill. Criticism of Sánchez by party dissenters for his hardline stance on Rajoy's investiture, said to be a contributing factor to the country's political deadlock, had been kept at bay by the party's performance in the
2016 general election, with threats from Sánchez's critics to hold him to account for a hypothetical party collapse on 26 June narrowly failing to materialize. This all changed in the run-up to the
Basque and
Galician regional elections, scheduled for late September 2016. The PSOE branches in both regions were widely seen as being among Sánchez's supporters, prompting dissenters to frame the elections as a test of Sánchez and of the broader political mood in Spain after nine months of political impasse. Party figures such as regional premiers
Susana Díaz (
Andalusia),
Guillermo Fernández Vara (
Extremadura),
Javier Lambán (
Aragon) and Emiliano García-Page (
Castile-La Mancha); as well as former figures such as
Alfredo Pérez Rubalcaba (Sánchez's predecessor as PSOE leader), Eduardo Madina (Sánchez's rival in the
party's 2014 leadership contest),
Elena Valenciano (former PSOE deputy leader) and
Carme Chacón (former
Defence Minister), all became involved in a series of disputes with the national party leadership in the weeks leading up to the regional elections, weakening Sánchez's standing and indicating a loss of support within the party.
26–27 September The poor PSOE showing in both
Galicia and the
Basque Country, being overtaken by
Podemos-led alliances and polling record low results, prompted dissenters—led by Susana Díaz—to call for Sánchez's immediate resignation on 26 September. Sánchez refused to step down and announced his plan to hold a party primary election on 23 October, daring his critics to challenge him in a back-me-or-sack-me vote. This move further enraged his opponents, who considered staging a revolt in the federal committee scheduled for 1 October, seeking to topple Sánchez and cancel his plan to hold an early party congress. With party discipline breaking down rapidly, Sánchez's supporters praised his plan to hold an "express" party primary and called for "all out war!" against dissenters, suggesting that the Sánchez–Díaz feud over leadership and political strategy had resulted in a deeply divided party fighting for its very existence. On 27 September, in her first public statements after Sánchez's gamble, Susana Díaz hinted at the possibility of becoming leader of the PSOE, expressing her discomfort with Sánchez's plan to hold a party primary and congress in October while reminding the incumbent PSOE leader of his many electoral defeats throughout his tenure, in contrast to Díaz's own electoral performance in the
2015 Andalusian regional election. Concurrently, a majority within the party's parliamentary group in the Congress of Deputies voiced their opposition to Sánchez's plans to hold a party congress.
28 September Former Socialist
Prime Minister Felipe González added to the pressure on Sánchez by declaring that the PSOE was in no condition to attempt to form a government themselves, while stating that he felt "cheated" because Sánchez had told him on 29 June that he would abstain in the second round of voting for Rajoy's investiture. Sánchez's statements during an interview held earlier in the day claiming González to be "on the [Rajoy's investiture] abstention side" and rhetorically asking "I'd like to know on which side Susana Díaz is", coupled with an earlier warning that he would not step down even if 1 October federal committee voted down his plans for a party congress in late 2016, were said to be
the straw that broke the camel's back for open revolution to unfold within the party. News emerged that opponents of Sánchez planned to stage a mass resignation from the PSOE federal executive committee, the party's day-to-day governing body—according to party rules, the resignation or vacancy of 51% of its members would force the Secretary General to resign. Upon learning of this, Pedro Sánchez went further and dared them to do so if they "did not feel committed" to his project, prompting dissenters to act ahead of schedule and resulting in 17 executive members, the required majority, resigning from their posts on 28 September. This triggered the body's dissolution, theoretically prompting Sánchez's resignation. Sánchez, however, refused to resign and remained in his position, with rebels responding that Sánchez no longer had "any legitimacy to take decisions in the party's name" and urging him to "acknowledge party rules". Sánchez was determined to keep the remaining executive functioning—now fully supportive of him after the critics' resignations—and rejected its dissolution, summoning it for an emergency meeting on the following day.
29 September By the next day, the PSOE had descended further into chaos, as both sides refused to recognize the other's legitimacy to act and clashed on the interpretation of party rules, with Sánchez barricading himself in the party's headquarters in
Calle de Ferraz (Spanish for Ferraz street),
Madrid, as his supporters accused dissenters of "staging a coup". Critics proclaimed that they were now in control of the party, and
Verónica Pérez, President of the federal committee and pupil of Susana Díaz, claimed herself to be "the only authority that exists in the PSOE, whether [Sánchez's supporters] like it or not" under party rules. Dissenters sought to convene the party's guarantees federal commission—an independent body tasked with resolving disputes within the party—to forcibly depose Sánchez, but Sánchez's supporters argued that they had no right to summon the guarantees commission and that their actions were "void". Nonetheless, three of the five commission members demanded that the body be convened and accused Sánchez of "preventing them from acting", stating they would issue a dictum themselves if the body was not convened within 24 hours. Sánchez persisted with his intention to stage a primary and congress, and set a timetable with hastened deadlines for them to be held. Party members found themselves evenly split between those that supported him and were "deeply embarrassed" by the "show" being staged by his opponents, and those that demanded Sánchez's removal and the establishment of a caretaker committee to replace him in the interim. The fracture deepened as the crisis spread through the regions, with regional party branches picking sides either for or against Sánchez. Susana Díaz, in her first public speech after the revolt, criticized Sánchez's record as party leader, accusing him of being motivated "out of personal interest" and offering herself to reconcile the party. Díaz would seek instead to have the party congress be held "in due time", only after the political deadlock in Spain had been solved.
30 September On 30 September, both sides were reportedly readying themselves for the meeting of the PSOE's 295-member federal committee scheduled for Saturday, 1 October. While the meeting of top party officials was initially expected to analyze the regional election results and to discuss and update the party's position on any future investiture, new developments had made the meeting key to determining the party's short-term future. The crippled PSOE executive committee under Sánchez had convened the previous day to call a new federal committee for the same day and time as initially scheduled, now with the intention of approving Sánchez's plan to hold an extraordinary congress to renew the party's leadership. Critics declared the new convention "illegal", instead only recognizing the meeting called for that date by the fully functional executive before the revolt. This meant that the two factions intended to hold two separate meetings, but at the same time and place. Meanwhile, 'officialists' supportive of Sánchez struggled to keep control over the parliamentary party in the
Congress of Deputies, with just half the 84 PSOE deputies remaining loyal to Sánchez and the rest siding with the rebels. Also, for the first time since the mass resignation from the federal executive committee, Sánchez's supporters acknowledged their status as an "interim" PSOE executive. Attempts from both sides to reach some sort of compromise to prevent all out war from raging at the next day's federal committee failed, with the two factions' positions seemingly irreconcilable in the short term. Police intervention was required ahead of Saturday's meeting to deal with possible unrest between party members in the area around the Madrid headquarters as the interim leadership pleaded with party supporters for "serenity" and "prudence" to prevent the conflict from escalating further. After Sánchez chose not to convene the guarantees commission until after the federal committee, the three Sánchez critics on the commission issued a report endorsing the executive committee's dissolution and calling for the federal committee to fill the power vacuum. They also deemed that party rules did not provide for the "interim" status that Sánchez's executive had conferred upon itself, with any decision adopted in such circumstances being "completely without any statutory validity and null and void". Pedro Sánchez immediately held a press conference—his first since the crisis started—and challenged dissenters to vote on the party's position on a future Rajoy investiture vote, promising to step down if the federal committee decided to support an abstention. However, Sánchez's critics were undeterred, retaining their plan to depose Sánchez in Saturday's meeting nonetheless.
1 October The two factions vying for control of PSOE faced the federal committee with no prospect of reconciliation and with diametrically opposing views. Pedro Sánchez's
officialists sought to retain control of the leadership until a congress to be held soon thereafter.
Critics under Susana Díaz intended to take full control of the party by deposing Sánchez in the party assembly and appointing a caretaker team—expected to be headed by Díaz's close ally
Javier Fernández,
Asturian President—that would deal with the political consequences of allowing a PP government. The party would then take time to hold a "refoundation congress" and a party primary which Díaz would contest unopposed. The party was said to be at the brink of splitting into two if no peaceful solution to the conflict could be found quickly. Initially scheduled to begin at 9:00
CEST, disagreements between the two factions over the meeting's agenda and voting census delayed the start of the federal committee meeting by several hours. Seeking to gain time, Sánchez proposed readmitting the 17 executive members who had resigned three days previously and calling the committee to convene the next week, but the rebels rejected this, declaring that they did not recognize him as party leader and describing Sánchez's move as "insulting". Sánchez repeatedly blocked Díaz's attempts to vote on his position as the two sides failed to agree on the purpose of the committee. In the meantime, the ongoing turmoil attracted hundreds of journalists, policemen, party members and curious observers, who gathered outside the party's headquarters throughout the day. Sánchez tried to force a
secret ballot on his proposal for a party congress, but it was suspended after critics claimed the
ballot box was "hidden" and unsupervised, accusing Sánchez of
vote rigging. This action was said to have cost Sánchez support among his allies and prompted rebels to start procedures to trigger a
censure motion against him. This was rejected by Sánchez's supporters controlling the assembly, despite the rebels collecting the signatures of more than half of committee members—thus ensuring Sánchez would have been ousted had the vote been allowed. Amid the turmoil, some people, including Susana Díaz herself, were reported to have broken down in tears, while Sánchez's supporters denounced an attempted assault on Pedro Sánchez by Díaz's deputy, Juan Cornejo. An agreement was finally reached between the two factions to vote again on Sánchez's congress proposal—this time by a
show of hands—linking the outcome of the vote to Sánchez remaining in his post. Pedro Sánchez lost the ballot by 132 to 107, prompting him to resign as PSOE leader. Following the vote, Sánchez's critics appointed a caretaker commission to lead the party temporarily until a party congress could be held. It was implied that the events of this day may help pave the way for the formation of a new government and put an end to nine months of political deadlock, as the rebels considered an abstention in a potential forthcoming vote on Rajoy's investiture. Nonetheless, PP leaders were said to be "incredulous" and "concerned" with "all that was happening within PSOE", worried at the prospect of a party fracture that would leave
Podemos as the dominant leftist force in
Spanish politics.
Foreign Minister José Manuel García-Margallo said that PSOE's situation was "schizophrenic" and that the party could not "afford for a new general election to be held at this time". In contrast, Podemos leaders openly accused PSOE rebels of committing "fraud" by attempting to remove Sánchez through "undemocratic means", with the ultimate goal of ending the deadlock by helping Rajoy to get re-elected. Podemos' Secretary General
Pablo Iglesias described the PSOE's turmoil as "the most important crisis since the end of the
Civil War, in the most important Spanish party of the past century". Sánchez's supporters gathered at the
PSPV headquarters in
Valencia on 29 September to denounce
Ximo Puig's support in the revolt against the PSOE leader, with chants of "Coup plotters out from the Socialist Party!" and "Ximo liar" being heard. The
PSC announced its support for Sánchez by planning to bring buses from
Terrassa and other towns in
Catalonia to Madrid in a show of their allegiance to the Secretary General, but this was later suspended after Sánchez's executive appealed to party members' serenity to prevent conflict from escalating further. Nonetheless, party members who gathered outside PSOE's headquarters in Madrid shouted at critics attending the meeting by calling them "traitors" and "coup plotters", as chants against Susana Díaz and in support of Pedro Sánchez were heard. Reactions to Pedro Sánchez's resignation were mixed. Podemos leader Pablo Iglesias commented that "supporters of a PP government have imposed themselves on PSOE" and called for opponents of the coup to rally behind Podemos as the only remaining leftist alternative in Spain to a Rajoy government. C's leader
Albert Rivera praised Susana Díaz's move and called for the PSOE to "help form a government". Sánchez's ouster was reported as being "the most turbulent event" in the party's history, with some regarding the whole event as "shameful". Odón Elorza, former
San Sebastián mayor and one of those present at the federal committee, stated that party colleagues had become "hopelessly crazy" and accused them of "killing the party". Some remarked that the party had emerged "fatally shattered", with the assembly "ending in the worst way possible". Others commented that PSOE had chosen to "commit suicide" after the "sorry spectacle" it had offered, with PSOE member and former minister
Javier Solana commenting of Sánchez's poor election results—cited as one of the motives behind his ejection—that "when they become aware of the damages, they will all prefer 85 deputies". Former minister and Sánchez ally
Jordi Sevilla said he was leaving the party because he felt "deeply embarrassed" at the whole event. ;Pranks Shortly after Pedro Sánchez had been sacked as party leader by the federal committee, while its members were appointing a caretaker team to replace him in the interim, the PSOE was the subject of a prank consisting of a massive
pizza delivery.
Forum members from both the
ForoCoches and
La Retaguardia websites had allegedly paid for the prank, with the latter posting a bill for €117 for the delivery on their
Twitter account. More pranks were staged over the following days, with several
mariachi bands congregating at Ferraz's door to play songs
caricaturing the figures of Pedro Sánchez and Susana Díaz.
Struggle for opposition leadership With the rebel faction taking over the party, political relations with Podemos became strained.
Susana Díaz's opposition to any kind of pact with Iglesias' party was widely known, and she had blamed Podemos for the eruption of the PSOE crisis. However, Díaz's actions to have her former protege removed—through what was dubbed by some as a "palace coup"—caused a lot of damage to her public reputation, while leaving the party at the mercy of
Mariano Rajoy, who subsequently began to push for conditions in exchange for avoiding a third general election. After being ousted, Pedro Sánchez hinted at the possibility of standing in the forthcoming party primaries, indicating that the battle for the party's leadership was not over. On 7 October 2016
Pablo Iglesias of
Podemos proclaimed himself to be the new
Leader of the Opposition, on the basis of his party's strength in Congress—67 seats to PSOE's 84—and his claim that the now leaderless PSOE was poised to become PP's parliamentary partner by abstaining and facilitating PP rule. ==Subsequent events==