Guilherme Derrite, a pre-candidate for the Senate and member of the PP, is challenging Simone Tebet (PSB) and Marina Silva (Rede) for legislative seats.
The contest for the two Senate seats [2] available in São Paulo is viewed as a critical bellwether for the balance of power in Brazil's national government. Because the state is a major political hub, the outcome will influence the strength of right-leaning and left-leaning blocs in the upper house.
In an interview released in late May, Derrite focused his criticism on Tebet's political evolution. He said the trajectory of the minister is incoherent, noting that she previously criticized the left-wing government and now serves as part of it.
Recent polling indicates a highly competitive race. A Quaest poll released on May 29, 2026 [3], showed that Derrite, Tebet, and Silva are technically tied [1] for the available positions. Derrite said they are tied in the most recent surveys.
Beyond the individual candidates, Derrite emphasized the strategic necessity of electing right-wing representatives to the Senate. He said the dispute for the legislative seats in São Paulo will have a vital role in the national scenario.
While some reports suggest a tie among the three front-runners, other data indicates a more tiered ranking. Some scenarios list Tebet, Silva, and Márcio França alongside Derrite as leaders, while other polls place Derrite in third behind Silva and Tebet.
Derrite continues to frame the election as a choice between ideological consistency and the shifting alliances of his opponents. He said a strong right-wing presence in the Senate is essential for the country's political direction.
“"É incoerente a trajetória da ministra, que antes criticava o governo de esquerda e agora faz parte dele."”
The tight race for São Paulo's Senate seats reflects a broader national struggle for ideological control in Brazil. By targeting Tebet's perceived inconsistency, Derrite is attempting to mobilize conservative voters through a narrative of political purity. The result of this election will determine whether the Senate becomes a cooperative partner or a primary obstacle to the current administration's legislative agenda.
