He belongs to the Civic Front of Córdoba, a provincial party allied with the Juntos por el Cambio coalition.

[1] In 1987, Martínez worked as an advisor to the constituent assembly formed to rewrite the constitution of Córdoba Province.

[2] Martínez served as president of the five-member Civic Front of Córdoba parliamentary bloc in the Chamber during his 2009–2013 term.

[3] In the 2015 general election, Martínez was the first candidate in the Cambiemos list to the National Senate, followed by Laura Rodríguez Machado.

[1] He was a supporter of the legalisation of abortion in Argentina, voting in favour the two Voluntary Interruption of Pregnancy bill debated by the Argentine Congress in 2018 and 2020.