Prime Minister Pedro Sánchez of the Spanish Socialists Workers’ party, who leads a coalition government, called a snap election on 5 October.
Spain has a bicameral parliament known as the Cortes Generales. The upper house Senate has 266 members who four-year terms and the lower house Congress of Deputies has 350 members who serve four-year terms.
Spain has a mixed electoral system with the Senate following a majority-based approach and the Congress of Deputies using a semi-proportional system.
Spain has a population of around 48 million and 35 million registered voters. In the 2023 election, voter turnout was 70%.