Ahead of the 2017 legislative election, Grosso and the rest of the Evita Movement broke ranks with the FPV and instead backed the unsuccessful senatorial candidacy of former Interior MinisterFlorencio Randazzo; in the Chamber of Deputies, the Evita Movement formed the Peronism for Victory bloc, which later formed part of the Red por Argentina parliamentary group alongside, among others, deputies Felipe Solá and Victoria Donda.[6][7]
Ahead of the 2019 general election, the Evita Movement joined the Frente de Todos (FDT) to back the presidential candidacy of Alberto Fernández; Grosso was 3rd in the FDT deputies list in Buenos Aires Province and was easily re-elected.[8]
In 2019 Grosso married his long-term partner, Guillermo Castro, becoming one of the few members of the Argentine National Congress to marry a same-sex partner under the 2010 same-sex marriage law, after Analuz Carol and Osvaldo López.[10][11] Grosso has stated that he identifies as marica.[12]