[1] He founded the Cuban Communist Party (Partido Comunista Cubano) in 1925 along with Carlos Baliño, Alfonso Bernal del Riesgo, and Julio Antonio Mella.

In 1925, alongside Julio Antonio Mella, he founded the Communist Party of Cuba, with José Miguel Pérez being elected as its general secretary.

[3] In the Canary Islands, he continued his political activity and in 1929 founded the La Palma Workers' Federation and the newspaper Espartaco.

He later adopted the political line of the PCE and influenced the Communist Party of the Canary Islands to participate in the Popular Front.

He took part in the resistance against the military coup of Francisco Franco in La Palma during the period known as the Red Week.