United Left (Spain)
Spanish political coalition
IU was founded as an electoral coalition of seven parties, but the Communist Party of Spain (PCE) is the only remaining member of the IU at the national level. It is currently part of Unidas Podemos.
- "Electoral incentives and organizational limits. The evolution of the Communist Party of Spain (PCE) and the United Left (IU) (in English)" (PDF). Institute of Political and Social Sciences. 2002. Retrieved 11 May 2014.