Quaest research released this Saturday (3), the eve of the 1st round, shows how the dispute for the Senate is going in Acre. This Sunday (4), each voter will have to vote for two candidates. Gladson Camelí (PP) leads, with 24% of valid votes, followed by Márcio Bittar (PL), with 22%.
Spontaneous search
First, Quaest asked voters who they would vote for, without showing the list of candidates. This is a spontaneous survey, and 12% of respondents did not mention a name in their response. Therefore, they are considered undecided (at the end of the report, see data from the spontaneous survey).
Gladson Camelí (PP), Marcio Bittar (PL), Mara Rocha (Republicans) and Jorge Viana (PT) — Photo: Reproduction
The results of the spontaneous survey help to measure the degree of vote consolidation. The greater the number of undecided voters the day before, the less consolidated the vote is and the greater the possibility of changes in relation to Sunday's result.
Stimulated search - valid votes
In the stimulated survey, the names and parties of the candidates are presented to the interviewees. Each voter chooses a name for the first vacancy in the Senate and another for the second.
The data below considers the votes valid. This calculation excludes blank and invalid votes and also undecided voters.
Gladson Camelí (PP): 24%
Márcio Bittar (PL): 22%
Jorge Viana (PT): 16%
Mara Rocha (Republicans): 19%
Sérgio Petecão (PSD): 9%
Eduardo Velloso (Solidarity): 7%
Junior Feitosa (DC): 2%
Inácio Moreira (PSOL): 1%
What are valid votes?
This is the way in which the TSE publishes the official results of the elections. These are the votes cast for candidates. This calculation leaves out blank and invalid votes and abstentions. To win in the 1st round, a candidate needs 50% of the valid votes plus one vote.
How does Quaest calculate valid votes?
Quaest takes into account voting intentions from the survey and the turnout profile to estimate valid votes. It is the likely voter model, which considers voters with a greater propensity to vote.
Stimulated Search - Total Votes
See now the numbers of total votes, including blank and invalid votes and undecided votes.
Aggregate result (1st and 2nd wave)
Gladson Camelí (PP): 18% (it was 19% in the previous survey)
Márcio Bittar (PL): 17% (was 14%)
Mara Rocha (Republicans): 15% (was 13%)
Jorge Viana (PT): 13% (was 12%)
Sérgio Petecão (PSD): 8% (was 8%)
Eduardo Velloso (Solidarity): 6% (was 6%)
Júnior Feitosa (DC): 1% (was 2%)
Inácio Moreira (PSOL): 1% (was 1%)
Blank/null/will not vote: 9% (was 17%)
Undecided: 12% (was 8%)
Vote for 1st place
Gladson Camelí (PP): 23% (was 26%)
Márcio Bittar (PL): 20% (was 13%)
Jorge Viana (PT): 17% (was 16%)
Mara Rocha (Republicans): 14% (was 13%)
Sérgio Petecão (PSD): 8% (was 7%)
Eduardo Velloso (Solidarity): 5% (was 4%)
Júnior Feitosa (DC): 1% (was 3%)
Inácio Moreira (PSOL): 0% (was 0%)
Blank/null/will not vote: 6% (was 5%)
Undecided: 6% (was 13%)
Vote for 2nd place
Gladson Camelí (PP): 12% (was 13%)
Márcio Bittar (PL): 13% (was 14%)
Jorge Viana (PT): 9% (was 9%)
Mara Rocha (Republicans): 17% (was 13%)
Sérgio Petecão (PSD): 9% (was 10%)
Eduardo Velloso (Solidarity): 7% (was 7%)
Júnior Feitosa (DC): 1% (was 1%)
Inácio Moreira (PSOL): 2% (was 1%)
Blank/null/will not vote: 12% (was 11%)
Undecided: 18% (was 21%)
Vote decision
For 24%, the vote choice for the Senate could still change. Another 75% say the decision is final.
Choice is final: 75% (was 65%)
Could change: 24% (was 34%)
Don't know/didn't answer: 1% (was 1%)
Spontaneous search
Gladson Camelí (PP): 9% (was 9%)
Márcio Bittar (PL): 9% (was 7%)
Jorge Viana (PT): 7% (was 6%)
Mara Rocha (Republicans): 8% (was 5%)
Sérgio Petecão (PSD): 5% (was 3%)
Eduardo Velloso (Solidarity): 4% (was 2%)
Júnior Feitosa (DC): 1% (was 1%)
Professor Inácio Moreira (PSOL): 0% (was 0%)
Blank/null/will not vote: 3% (was 2%)
Undecided: 54% (was 64%)
The survey was commissioned by Rede Amazônica and interviewed 1,800 voters aged 16 or over, between the 2nd and 3rd of October. The margin of error is 2 percentage points, plus or minus. The confidence level is 95%. The survey was registered with the Electoral Court under number AC-02370/2026.
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