Pedro Sánchez’s October 5 announcement of a snap general election for November 29 followed parliamentary defeats on housing decrees and nationwide protests over rents and evictions, shifting focus to voter mobilization. Recent polls, including 40dB and SocioMétrica surveys from late September and early October, place the Partido Popular (PP) at 31–34% support, ahead of PSOE at 25–27% and Vox at 18%, giving the right a combined 50%+ share and projected seat totals exceeding the 176-seat majority threshold in most simulations. This positioning underpins the elevated implied probability for PP as the leading outcome, while PSOE trails amid coalition fragmentation on the left. The Spanish electoral system’s seat allocation and potential PP-Vox alliances remain central variables ahead of the campaign.