Undecided and Abstaining Voters Will Determine the Fate of Brazil's Presidential Election

Serdar HocamAuthor & Editor

Ahead of Brazil's critical presidential runoff election, the stance of millions of undecided and abstaining voters will play a key role in determining the outcome of the race.

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Neither Bolsonaro Nor Lula: Brazil’s Undecided and Abstaining Voters May Determine the Election

Preparations are underway in Brazil for a tense presidential runoff election on October 25 between left-leaning incumbent President Luiz Inácio Lula da Silva and far-right Senator Flávio Bolsonaro.

The Road to the Runoff Election

Brazil is heading toward a tense presidential runoff election to be held on October 25, 2026, as no candidate secured more than 50 percent of the vote in Sunday's first round.

This critical race between incumbent President Luiz Inácio Lula da Silva and far-right Senator Flávio Bolsonaro carries great significance for the country's political future.

High Abstention Rates and Non-Voters

More than 33 million citizens, corresponding to 21 percent of the electorate, did not cast their ballots, marking the highest rate of non-participation recorded since 1998.

Candidates' Strategies and Supporters

Bolsonaro holds certain advantages having received 2 million more votes than Lula in the first round and securing the backing of right-wing figures such as Ronaldo Caiado.

Voters' Reactions and Concerns

Voters such as theater student Ana Beatriz Bon Raggio and university student Alexandre Moreira express deep distrust and frustration in the face of economic hardships, including corruption allegations, polarization, and rising gasoline prices.