Datafolha Poll: 30% of Brazilians Vote to Prevent Rival's Election

A significant portion of Brazilian voters, 30%, are motivated by a desire to prevent a specific candidate from winning the 2026 presidential election, according to a new Datafolha poll. This strategic voting contrasts with the majority, 61%, who say they will vote for their chosen candidate based on perceived qualifications and policy proposals. The survey, conducted between Tuesday and Wednesday with 2,058 interviews across 128 municipalities, highlights the deep divisions within the electorate.

The poll further breaks down these motivations by candidate support. Among voters who intend to support President Lula (PT), 23% cited preventing another candidate's election as their primary reason, while 68% stated they would vote for him based on his proposals. For supporters of Flávio Bolsonaro (PL), the "strategic vote" is even more pronounced, with 35% indicating their main goal is to defeat another candidate, compared to 56% who believe he is the most prepared.

This trend of voting to block rivals is numerically higher among supporters of Romeu Zema (Novo), with 37% expressing this motivation, although the poll's margin of error for this base is substantial at 13 percentage points. Similarly, 31% of Ronaldo Caiado's (PSD) potential voters are driven by this objective. The data suggests that this anti-candidate sentiment is a significant factor, potentially reflecting the intense polarization between Lula and right-wing candidates who oppose him.

Political campaigns are actively leveraging this dynamic. Flávio Bolsonaro is positioned by the PL as the main alternative to Lula. Meanwhile, other candidates on the right are attempting to present themselves as viable options to prevent the PT's return to power. Ronaldo Caiado, for instance, emphasizes his "authentic right-wing" credentials and his historical opposition to the left. On the other side, Lula, facing less competition from the left, is seen by some voters as the candidate who can prevent the Bolsonaros' return, even if indirectly through Flávio.