She ran for mayor in the 2019 Zaragoza City Council election but resigned days after only winning two seats, and returned to the legal profession.

[4] Antonio Cosculluela of the Spanish Socialist Workers' Party (PSOE) was elected President of the Cortes of Aragon (speaker), with Barba as his deputy.

[5] When Cosculluela resigned in September 2016, Barba succeeded him, as the first woman in the office and the youngest person, aged 29.

[6] In the primaries in February, Barba took 68.37% of the votes to be Podemos's candidate for mayor in the 2019 Zaragoza City Council election on 26 May.

[7] Having come fifth and taken two of 16 seats, she resigned on 3 June, being replaced by Amparo Bella who was third on her list; she returned to her legal practice.