Head of Cédric Villani list in the 19th arrondissement of Paris for the 2020 French municipal elections, she left LREM during the campaign.

[1] Forteza was born in Paris to Argentine parents, where she lived for seven years before moving to Argentina, where she studied at the Lycée Franco-Argentin Jean Mermoz.

[2] Forteza studied political science at Torcuato di Tella University before working on a social protection program for the government of Buenos Aires.

She graduated with a Master of Public Administration in 2016 and began working for Etalab, a Prime minister service in charge of the open-data and open-government policy.

[16] On January 28, 2020, she announced her departure from La République en marche on French national radio: having explained the lack of consideration for left and ecological issues, she expressed deep disagreement with the political methods used by the party, which "rewards friendships more than competencies".