A fresh political shift is taking shape in Brazil. A newly released Nexus/BTG survey shows the electoral race tightening significantly, pointing to a distinct momentum shift toward the political opposition just weeks ahead of the vote.
What the Polls Show
According to the Nexus data, a potential second-round runoff reveals a virtual dead heat. Incumbent President Luiz Inácio Lula da Silva registers 46% of voting intentions, narrowly edging out Flávio Bolsonaro at 45%, which falls well within the margin of error. When pitted against Ronaldo Caiado, Lula leads 46% to 42%.
In a hypothetical first-round matchup, Lula maintains a lead with 41%, followed by Flávio Bolsonaro at 37%, Caiado at 5%, Renan Santos at 3%, and Romeu Zema at 3%.
The telephone survey of 2,006 voters, conducted between August 21 and 23, confirms a broader trend observed across recent data releases.
The Momentum Shift
This tightening mirrors findings from a recent Datafolha survey released just three days prior. In that poll, Lula held a slightly wider second-round margin of 47% to 43% against Flávio, but the overall trajectory clearly shows the gap closing.
Nexus CEO Marcelo Tokarski highlighted the changing dynamics in a statement to the Brazil Journal.
"In all recent polls, Flávio has grown in spontaneous voting for both the first and second rounds while reducing his rejection rates," Tokarski noted. "Lula still holds an advantage, but it is very small, and the election is wide open."
What's Next for the Race
Statistical models reinforce the changing landscape. According to Nexus calculations, the probability of Lula finishing the first round in the top spot was calculated at 100% just weeks ago. Today, that probability has dropped to 88%, opening up a realistic window for unexpected shifts before election day.
With both major polling firms pointing to a narrowing race and falling rejection numbers for the opposition, the upcoming weeks will prove critical as candidates fight to capture undecided voters.


