CSSP was supported by Podemos, Equo and local social collectives and movements.

CSSP submits lists to the municipal elections in May 2019 in Torremolinos, Benalmadena, Mijas and Fuengirola.

The party gained representation in some of the town councils of the Costa del Sol.

They did not get any representation in cities such as Málaga and minor towns (Manilva, Casares, Vélez-Málaga, Nerja, Torrox, Rincón de la Victoria, Benahavís).

By 2019 the party did not participate in Estepona and Marbella, and lost all the city council seats they had.