President Luiz Inácio Lula da Silva holds an eight percentage point advantage over Flávio Bolsonaro in a potential second-round runoff [3].
The results highlight the current volatility of the Brazilian right and the resilience of the incumbent's lead as the 2026 presidential election cycle progresses.
Felipe Nunes, director of the Quaest research institute, analyzed the latest electoral data on Wednesday. Nunes said that in a possible second-round scenario, Lula's lead over Flávio Bolsonaro has fluctuated by two percentage points in a positive direction over the last month [4].
Despite the overall lead held by the president, Nunes said that Flávio Bolsonaro is showing signs of recovery [5]. This shift occurs amid a broader political landscape where the conservative wing has struggled to coordinate a single unified challenger against the sitting president.
Earlier data from January 2026 confirmed Lula's leadership across all tested electoral scenarios [6]. However, Nunes said the momentum regarding the improvement of Lula's image is beginning to lose its impulse [5].
The analysis follows a survey conducted between Oct. 2 and Oct. 5 [7], which utilized a sample of 2,004 people [1]. That specific poll carried a margin of error of two percentage points [2].
Other political pressures continue to affect the Bolsonaro family. A separate report noted that Flávio Bolsonaro's visits to his father were suspended for 90 days [8].
Nunes said the current data suggests a complex dynamic for the right, where the ability to transfer voters from the former president to his son remains a key factor in the race.
“the advantage of Lula for Flávio would be 8 percentage points”
The data suggests a fragmented right-wing opposition that is struggling to consolidate around a single candidate. While Flávio Bolsonaro is regaining some ground, the incumbent's steady lead indicates that the opposition has yet to find a strategy capable of eroding Lula's core support before the final stages of the election.
