CIS Poll Shows PSOE Leading PP by Nearly 13 Points

The latest barometric survey from the Spanish Center for Sociological Investigations (CIS) indicates that the ruling PSOE party would win a general election with 36.4% of the vote, widening its lead over the opposition PP to 12.8 points.

Key points

• The PSOE's projected vote share rose by 4.6 percentage points compared to March, while the Partido Popular (PP) remained largely stagnant at 23.6%.
• Vox's support declined to 14.7%, its lowest level since June 2025, while the left-wing parties Sumar and Podemos also saw decreases in their polling numbers.
• The survey was conducted between April 6 and April 10, coinciding with the start of judicial proceedings for the Kitchen and Koldo cases.
• Pedro Sánchez, the President of the Government, remains the best-rated political leader with a score of 4.81 out of 5.

Why it matters

The survey results reflect significant shifts in Spanish voter sentiment amid ongoing high-profile corruption trials and international geopolitical concerns.