In 2020 Santos was elected to the Porto Alegre municipal council for the 2021 – 2024 term, obtaining 3,715 votes. She became the first openly lesbian councillor to be elected in the city. On the council she created the Porto Alegre Women's Fund and became its coordinator. This is a social project that supports vulnerable women who are family heads. She also developed projects to combat harassment and sexual violence, support Afro-Brazilian entrepreneurship, and support the recognition of the LGBT+ population. She became a member and president of the council's Education, Culture, Sport and Youth Committee. Taking advantage of the visibility she obtained by being on the Porto Alegre council, Santos ran in the 2022 federal elections, also for PCdoB, for a seat in the federal
Chamber of Deputies. She was elected, with 88,107 votes, for the 2023 – 2027 term. In the Chamber she serves on the Science, Technology and Innovation Committee and on the Committee on Human Rights, Minorities and Racial Equality. ==Threats==