Spain was formerly considered to have a two-party system dominated by the PSOE and the PP;[1] however, the current makeup has no formation or coalition with enough seats to claim a parliamentary majority in the bicameral Cortes Generales (consisting of both the national Congress of Deputies and regional representation in the Senate).
Regional parties can be strong in autonomous communities, notably Catalonia and the Basque Country, and are often essential for national government coalitions.
Se Acabó La Fiesta was founded right before the 2024 European Parliament election and won 3 seats.
It is designated as a grouping of electors rather than as an official political party.
During the period of the Francoist Regime from 1939 to 1977, Spain was a one-party state.