[1] Blanc holds a PhD in law and was a lawyer at the bar of Perpignan for over twenty years.

She was elected as a regional councilor in 2015 and was a community advisor to the mayor's office in Perpignan.

Elected to the Perpignan municipal council alongside Louis Aliot, she took on the role of deputy in charge of education and school catering.

In the 2022 legislative elections, she ran for the Rassemblement National and was elected deputy for the first constituency of Pyrénées-Orientales on 19 June 2022 with 53.87% of the vote against her rival Romain Grau (outgoing deputy), a candidate for La République en marche.

[5] Bound by the legal provisions on holding multiple offices, she chose to remain a regional councillor and resigned her municipal and community councillor mandates in September 2022.