Datafolha: Lula abre 14 pontos sobre Bolsonaro a 10 dias do pleito

The electorate appeared to have made its decision.
Bolsonaro's electoral maneuvers failed to shift voter sentiment as the race entered its final ten days.

A dez dias das eleições presidenciais brasileiras, as pesquisas convergem para um retrato de uma corrida que parece ter encontrado seu equilíbrio definitivo: Luiz Inácio Lula da Silva avança com uma vantagem de catorze pontos sobre Jair Bolsonaro, tocando o limiar dos 50% necessários para uma vitória no primeiro turno. O Sul do país, outrora bastião do incumbente, inclinou-se pela primeira vez em direção ao desafiante, enquanto meses de manobras eleitorais do presidente não lograram mover o eleitorado. A única questão que resta ao Brasil responder é não quem vencerá, mas em qual turno.

  • Lula atinge exatamente 50% dos votos válidos — o limiar preciso para encerrar a disputa já no primeiro turno, sem necessidade de segundo turno.
  • Bolsonaro permanece estagnado em 33%, imóvel diante de uma campanha que apostou em benefícios sociais, comícios patrióticos e viagens internacionais — nenhuma delas capaz de mover o eleitorado.
  • A virada no Sul representa a ruptura mais simbólica: Lula transformou uma região dominada pelo incumbente em território disputado, avançando seis pontos em uma semana de campanha intensa.
  • Dois institutos independentes — Datafolha e Ipec — apontam para o mesmo horizonte, conferindo ao cenário uma consistência que vai além da margem de erro.
  • Com apenas 2% de indecisos restantes, o eleitorado brasileiro parece ter chegado ao seu veredicto; o que se aguarda agora é a confirmação das urnas.

A dez dias do primeiro turno das eleições presidenciais brasileiras, Luiz Inácio Lula da Silva consolidou uma vantagem que poucos meses atrás parecia improvável em sua magnitude. A pesquisa Datafolha divulgada na quinta-feira mostrou o candidato do PT com 47% das intenções de voto, dois pontos acima da medição anterior, enquanto Jair Bolsonaro permanecia estático em 33%. Calculados apenas os votos válidos, Lula alcançava exatamente os 50% necessários para evitar um segundo turno.

O achado mais revelador da pesquisa veio do Sul do país. Após uma semana de campanha intensa na região, Lula saltou de 34% para 40%, tecnicamente empatando com Bolsonaro nos três estados que compõem o Sul — território que o presidente havia dominado ao longo de todo o ciclo eleitoral. Bolsonaro retinha apenas o Centro-Oeste como reduto seguro, com 41% contra 38% do adversário.

A estagnação do presidente sinalizava o fracasso de uma estratégia eleitoral ambiciosa: a ampliação de benefícios sociais em ano eleitoral, a transformação do 7 de Setembro em palanque político e viagens ao exterior destinadas a projetar prestígio internacional não haviam movido um único ponto percentual a seu favor. O eleitorado parecia ter chegado a sua conclusão antes mesmo do encerramento da campanha.

Os resultados do Datafolha encontravam eco em levantamento do Ipec divulgado dois dias antes, que mostrava Lula em 47% e Bolsonaro em 31%, com o petista atingindo 52% dos votos válidos naquela metodologia. A convergência entre os dois institutos, com amostras e metodologias distintas, conferia ao cenário uma solidez difícil de contestar. A pergunta que restava ao Brasil não era mais sobre o vencedor, mas sobre o turno em que o resultado seria selado.

Ten days before Brazil's presidential election, Luiz Inácio Lula da Silva had opened a commanding lead that suggested he might win outright in the first round. A Datafolha poll released on Thursday showed the PT candidate at 47 percent of voter intention, up two points from the previous survey. Jair Bolsonaro remained flat at 33 percent, a gap of fourteen points that had only widened as the campaign entered its final stretch.

When the numbers were recalculated to include only valid votes—excluding blank ballots and spoiled ones—Lula crossed the 50 percent threshold needed to avoid a runoff, landing at exactly that mark while Bolsonaro held at 35 percent. The previous Datafolha measurement had shown Lula at 48 percent of valid votes, meaning the trajectory was unmistakable. Even in a hypothetical second-round matchup, should one occur, Lula led decisively at 54 percent to Bolsonaro's 38 percent.

The poll's most striking finding concerned the Southern region, where Lula had traveled in the preceding week. His support there jumped from 34 percent to 40 percent, effectively erasing what had been Bolsonaro's stronghold. For the first time in this cycle, the PT candidate now led in the South, technically tied with the incumbent across the three states that comprise the region. Bolsonaro retained only the Center-West, where he held 41 percent to Lula's 38 percent.

The stagnation in Bolsonaro's numbers suggested that months of electoral maneuvering had failed to move the needle. The president had expanded social benefits in an election year, transformed the September 7 national holiday celebrations into campaign rallies, and undertaken foreign trips intended to project strength and international standing. None of it had shifted voter sentiment in any measurable way. The electorate appeared to have made its decision.

Among other candidates, Ciro Gomes of the PDT slipped from 8 percent to 7 percent. Simone Tebet of the MDB held steady at 5 percent. Soraya Thronicke of União Brasil fell from 2 percent to 1 percent. Six other candidates—Felipe D'Ávila, Sofia Manzano, Vera Lúcia, Leo Péricles, Constituinte Eymael, and Padre Kelman—registered no measurable support. Undecided voters accounted for just 2 percent of the sample, while blank and null votes represented 7 percent.

The Datafolha findings aligned with a separate poll released two days earlier by the Ipec institute, which had shown Lula at 47 percent and Bolsonaro at 31 percent. That survey's valid-vote calculation put Lula at 52 percent to Bolsonaro's 34 percent, similarly suggesting a first-round victory was within reach. Ipec's previous measurement had shown Lula gaining a single point while Bolsonaro remained unchanged, reinforcing the picture of a race that had essentially solidified.

Datafolha conducted its survey among 6,754 voters across 343 municipalities between September 20 and 22. The margin of error was two percentage points in either direction. As the campaign moved into its final ten days, the polling consensus pointed toward a decisive outcome, though the specific mechanics of how that outcome would unfold—first round or second—remained the only genuine question left to answer.

Bolsonaro's electoral maneuvers—expanded social benefits, September 7 rallies, foreign trips—have failed to shift voter sentiment
— Datafolha analysis
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why did Lula's campaign trip to the South matter so much? It seems like a small thing to move numbers that much.

Model

It wasn't really about the trip itself. It was that Bolsonaro had owned that region completely, and suddenly he didn't. When a candidate shows up and the numbers shift that fast, it signals the ground has already moved—people were ready to listen, and the visit gave them permission to switch.

Inventor

And Bolsonaro's social spending, the September 7 rallies, the foreign trips—why didn't any of that work?

Model

Because voters had already decided. You can't spend your way out of a fourteen-point deficit in ten days. Those moves might have worked months earlier, but by late September, the electorate had made up its mind. The maneuvers looked desperate.

Inventor

Is a first-round victory actually likely, or is that just what the polls say?

Model

The polls say it's possible. Lula hits 50 percent of valid votes, which is the threshold. But polls can be wrong, and turnout matters enormously. What's clear is that Bolsonaro has no path forward unless something breaks his way in the final week.

Inventor

What about the undecided voters? Could they swing it?

Model

Only 2 percent are undecided. That's almost nobody. The race is essentially over; it's just waiting for the calendar to catch up.

Inventor

So this poll is really just confirming what everyone already suspected?

Model

Not quite. It's confirming it with numbers. There's a difference between suspicion and data. This makes it real.

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