Olona was member of the Congress of Deputies between 2019 and 2022 for Vox,[1][2] before being allegedly involved in an internal feud that led to her expulsion from the party.

[5] Transferred to the Sociedad Estatal de Participaciones Industriales as general secretary in August 2017, the following year she collaborated in uncovering the Mercasa case that involved both the People's Party (PP) and the Spanish Socialist Workers' Party (PSOE) in the payment of millionaire bites and cost overruns of more than 300% in foreign contracts.

Days after the constitution of the 12th Parliament of Andalusia on 14 July 2022, her retirement from politics "due to health issues" was announced.

[11][12] In 2023, she announced the founding of a new political party, Caminando Juntos (Walking Together), which she led in the 2023 Spanish general election scheduled for 23 July.

[13] Granddaughter of businessman Felipe Choclán, Olona was one of the richest members of Congress.