
AI-generated summary
The survey was released on the eve of the elections and is the fifth carried out by Datafolha on the electoral scenario in Rio de Janeiro, with similar scenarios.
On the eve of the elections, federal deputy Benedita da Silva (PT) remains in the lead in the dispute for a seat in the Senate in Rio de Janeiro, according to a survey released this Saturday (3) by Datafolha.
The PT member, a former senator, registers 26% of valid voting intentions. Two candidates appear in a technical tie for the second place up for grabs this year.
Federal deputy Carlos Jordy (PL) appears with 19% of valid voting intentions, in a technical tie with senator Carlos Portinho (PL), with 18%.
Federal deputy Pedro Paulo (PSD) has 13%. Councilor Mônica Benício (PSOL) registers 9% of valid voting intentions. Federal deputy Marcelo Crivella (Republicans) has 6%.
The calculation of valid voting intentions disregards interviewees who declared a null, blank or undecided vote. The procedure is comparable to that used by the Electoral Court to count and publish the official election results.
Contracted by Folha and TV Globo, the Datafolha survey, registered with the TSE under number RJ- 01334/2026, interviewed 2,010 voters from Friday (2) to this Saturday. The margin of error is plus or minus two percentage points.
This is the fifth Datafolha survey on the electoral scenario in Rio de Janeiro, with similar scenarios.
The former mayor of Belford Roxo Waguinho (Republicans) was mentioned by 3% of those interviewed who chose a candidate. Marcos Dias (Podemos) appears with 2%.
Helio Secco (Missão), Paula Falcão (PSTU), former Attorney General of Justice Luciano Mattos (PRTB) and Michelly Xavier (UP) appear with 1% of valid voting intentions. Vinicius Benevides (UP), Luiz Eugênio (PCO) and Ó Clemente (Democrat) did not score.
Among all those interviewed, 15% said they were still undecided and 14% said they would invalidate the vote (null or blank).

Quaest survey released this Saturday (3) shows Filipe Barros (PL) leading the dispute for the Senate in Paraná with 25% of valid votes, followed by Alexandre Curi (Republicans) and Deltan Dallagnol (Novo), both with 21%. Gleisi (PT) has 15%. The survey interviewed 2,005 voters between October 2 and 3, with a margin of error of 2 percentage points and a confidence level of 95%.

Decision by electoral judge Francisco Luís Rios Alves determined the withdrawal of the Datafolha survey registered with the TSE with numbers CE-09234/2026 and BR-06469/2026, due to a formal issue in the registration, without problems in the research methodology.

Quaest survey released this Saturday (3), the day before the 1st round, shows Rui Costa (PT) with 33% and Jaques Wagner (PT) with 30% of the valid votes for the Senate in Bahia. Angelo Coronel (Republicans) has 18% and João Roma (PL) 17%. The survey surveyed 2,004 voters between October 2 and 3, with a margin of error of 2 percentage points and a confidence level of 95%.

Quaest research released on the eve of the 1st round indicates Jorginho Mello (PL) with 71% of the valid votes for re-election in the government of Santa Catarina, followed by João Rodrigues (PSD) with 14% and Gelson Merísio (PSB) with 12%. Survey interviewed 1,800 voters between October 2nd and 3rd, with a margin of error of 2 percentage points and a confidence level of 95%.

Datafolha research released this Saturday (3), the eve of the 1st round, shows Flávio Bolsonaro (PL) ahead of Luiz Inácio Lula da Silva (PT) in the dispute for the presidency among the electorate of Minas Gerais, with 45% of valid votes against 39% for Lula. 2,003 voters aged 16 or over were interviewed between October 2nd and 3rd, with a margin of error of two percentage points and a confidence level of 95%.

Quaest survey released this Saturday shows Mauro Mendes (UNIÃO) in the lead with 37% of the valid votes for the Senate in Mato Grosso, followed by Janaína Riva (MDB) with 23% and Zé Medeiros (PL) with 17%. Fávaro and Pedro Taques appear technically tied with 9% each. 58% of voters are undecided in the spontaneous poll.