In his two terms under Mayor Alfonso Alonso, he also served as Government Spokesman, president of the municipal company Gilsa, during which he was responsible for the management of industrial land in Vitoria; and Councillor in Charge of New Technologies.

However, on June 13, 2015, Gorka Urtaran from the Basque Nationalist Party was declared mayor after gaining the votes of the councillors of EH Bildu, Sumando-Hemen Gaude and Irabazi.

[2] He lost his seat in Congress in the 2019 Spanish general election, but the Cortes of Castile and León designated him as senator on 24 July 2019.

In June 2015, Maroto announced his engagement to longtime partner José Manuel "Josema" Rodríguez.

[4] During the ceremony for the European Green Capital Award, passed from one Covenant signatory city to another, on November 29, 2012, Maroto gave the floor to Patrick Rimbert, Mayor of Nantes.