Juan Marino began his activism as a high school student at the age of 15. He is a business expert and a graduate in Commercial Sciences from the Escuela Superior de Comercio Carlos Pellegrini, an institution of which he became president of its student center in 2006,[2][3] under list 1 "FEL".
He subsequently served on the national leadership of the Union of Youth for Socialism - Workers' Party (UJS - PO) from 2006 to 2009, as well as on the Central Committee of the Federal Capital of the Workers' Party (PO) between 2008 and 2009. However, his time in the PO came to an end in 2009 when he was expelled from the party.
In the 2019 legislative elections, he won a place on the Frente de Todos ticket, but was not elected. In July 2021, he was appointed Provincial Director of Territorial Organization of the Ministry of Community Development of the Province of Buenos Aires.[8] In August 2022, he was appointed Deputy of the Argentine Nation for Buenos Aires, replacing Sergio Massa, who was appointed Minister of Economy.[9]
Marino maintains that his main task as a legislator is to pass a law that provides for a universal basic salary, although this has never materialized.[9][10]
Before the 2023 Primary Elections, he presented his book "Militant Strategy, Here and Now" at the Buenos Aires Graphic Federation.[11]
In the 2023 legislative elections he won a place in the chamber, after being placed 15th on the Union for the Homeland list..[12]
