Federal deputy Glauber Braga from PSOL has openly criticized the proposal to create a federation with PT, which is championed by the former deputy and current minister Guilherme Boulos. Braga argues that such a federation would undermine the political independence of PSOL, especially in the context of elections in Rio de Janeiro. He points out that a partnership could restrict the PSOL’s ability to nominate its own candidates, particularly in key political battles like the state government race.

Braga further elaborates that the concept of a federation implies a long-term political alliance of at least four years, which he believes would dilute PSOL's identity and compromise its programmatic goals. By aligning too closely with PT and its politics, he contends that PSOL would be forced into an inflexible political position, thus abandoning its foundational tenets. This statement emphasizes the internal divisions within the party regarding its future direction under a federation.

His remarks were made in response to a piece published in the Folha by Boulos and his allies, including prominent figures like minister Sônia Guajajara and federal deputy Erika Hilton. Internally, there are growing concerns about a potential split within the party, indicating significant ideological tensions as PSOL navigates its alliances ahead of future electoral challenges.