Spanish politics is characterized by a multi-party system, where several political parties compete for power. The two main parties are the Spanish Socialist Workers' Party (PSOE) and the People's Party (PP). Other significant parties include Podemos, which focuses on social issues, and Ciudadanos, a centrist party. The political landscape is often influenced by regional parties, especially from Catalonia and the Basque Country, reflecting the diverse interests of Spain's various regions. Elections in Spain are held every four years, and the Prime Minister is usually the leader of the party that wins the most seats in the Congress of Deputies. The Spanish Constitution of 1978 established a parliamentary democracy, ensuring a separation of powers among the executive, legislative