The re-election campaign of President Luiz Inácio Lula da Silva (PT) said recent opinion polls show a consistent decline in support for Senator Flávio Bolsonaro (PL-RJ) [1].
This shift in polling reflects the volatility of the Brazilian presidential pre-campaign as legal challenges begin to influence voter perception. If the trend holds, it could weaken the standing of the right-wing opposition ahead of the general election.
Lula’s team said the drop in support is due to several scandal allegations [1]. Depending on the report, these investigations are referred to as the “Master” case, the “Vorcaro” case, or the “Dark Horse” investigation [1], [2], [3].
Éden, the communications secretary for the PT, said the numbers show a consistent fall for Flávio Bolsonaro, reflecting the impact of the Master case [1]. While the campaign recognizes the downward trend, officials are remaining cautious. Carla Araújo said the Lula campaign expected a drop but is avoiding celebrating too early [3].
Despite the data, a spokesperson for the Lula campaign said that right-wing voters might eventually return to support the senator [2]. This suggests that the current dip may be a temporary reaction to the news cycle rather than a permanent shift in political alignment.
Senator Flávio Bolsonaro's team has disputed the significance of the polls. His representatives said the oscillations remain within the margin of error and do not indicate a definitive trend [1].
The reports emerged on May 22, 2026, following the release of Datafolha polling data [2], [3]. The campaign's internal analysis focuses on whether the legal pressure on the Bolsonaro family will create a lasting electoral liability, or if the base will remain loyal despite the allegations.
““The numbers show a consistent fall for Flávio Bolsonaro, reflecting the impact of the Master case.””
The intersection of judicial investigations and electoral polling in Brazil often creates short-term volatility. While the Lula campaign is leveraging these scandals to signal a loss of momentum for Flávio Bolsonaro, the actual impact depends on whether the 'Master' and 'Vorcaro' cases lead to formal charges or convictions that alienate moderate voters, or if the right-wing base perceives the investigations as political persecution.
