[1] Vaquero graduated in political sciences from the Complutense University of Madrid, where one of his lecturers was Pablo Iglesias Turrión, later founder of the left-wing party Podemos.

[6] In October 2018, the Audiencia Nacional acquitted him of membership of a criminal organisation and of explosives offences, while rejecting a request from the Prosecution Ministry to ban his party, which had been suspended from activities during the legal process.

[3] Vaquero's followers have been involved in escraches, or public heckling, of politicians such as Errejón, Iglesias and Yolanda Díaz whom they accuse of betraying the working class.

[2] Vaquero believes that the mainstream left-wing focuses of feminism, queer theory and environmentalism are distractions from the class war.

[4] When asked in 2024 about how his party would help women, he said that he would eliminate the Ministry of Equality, punish rapists more harshly, cut migration, and police the streets.

[10] At a 2023 event on Spain's migration crisis, hosted by journalist Arturo Pérez-Reverte, Vaquero said that he would use forces of the state to fight crime in dangerous neighbourhoods.