Bertone ran for Governor of Tierra del Fuego in the 2011 election but lost in the run-off vote to incumbent Governor Fabiana Ríos. Following the completion of her third term as a Deputy in 2013, Bertone was elected to the Argentine Senate for Tierra del Fuego.[2] In 2015 she ran again for Governor, gaining 42.26% of the vote in the first round on June 21. On June 28 she defeated her opponent, Federico Sciurano, with over 50% of the vote to be elected Governor.[3]
Bertone sought re-election as governor in 2019, but lost in the first round to the FORJA candidate, Gustavo Melella.[5] Bertone left office in December 2019 at the end of her term.
^"Bertone y un mensaje a los isleños: "Ellos son los únicos legisladores de las islas"" [Bertone and a message to the islanders: "They are the only legislators on the islands"]. CriticaSur (in Spanish). 9 November 2017. Retrieved 12 November 2017. Given the illegitimate electoral legislative act that is being developed in the Malvinas Islands, I want to emphasise that the only and legitimate legislators of the province of Tierra del Fuego, Antarctica and the South Atlantic Islands were elected on 21 June 2015...