Ramirez-Rosa is a member of the Chicago City Council's Progressive Reform Caucus, and was elected to serve as a delegate to the 2016 Democratic National Convention as a Bernie Sanders supporter. He served as an Illinois State Vice-Chair for Bernie Sanders' 2020 presidential campaign. Elected at the age of 26 to the Chicago City Council in February 2015, he is one of the city's youngest alderman, and one of the youngest Aldermen ever elected. He was re-elected to his third term on the Chicago City Council on February 28, 2023, running unopposed.
