Phoenix 24
Abstention and indecision have become strategic political territory.
Brasília, Brazil
Brazil’s presidential runoff is entering a phase in which the decisive voters may not be those who chose Lula or Flávio Bolsonaro in the first round, but those who stayed home, cast blank ballots or supported candidates who are now out of the race. Flávio Bolsonaro finished first with 47.03 percent of valid votes, while President Luiz Inácio Lula da Silva received 45.16 percent. The difference was narrow, but turnout revealed another political reality: roughly 33 million eligible voters did not participate, producing the highest abstention rate in decades. The runoff on October 25 will therefore depend not only on persuasion, but on mobilization.
The numbers make that battlefield unusually large. More than nine million voters supported candidates eliminated in the first round, while millions more cast blank or invalid ballots. Those groups now represent the most accessible pool of potential movement between the two finalists. Bolsonaro enters the second round with endorsements from several defeated right-leaning candidates, giving him a clearer path toward consolidating conservative voters. Lula faces a different challenge: he must recover participation among sectors traditionally more favorable to the Workers’ Party while also appealing beyond his established base.
Regional geography will matter. Lula remains strongest in the Northeast, but abstention there was substantial, creating an obvious incentive for his campaign to increase turnout. Bolsonaro performed better across most other regions and won in several of Brazil’s largest electoral states. The second round may therefore be less about changing ideological loyalties than about improving participation where each candidate already possesses underlying strength.
Economic anxiety will also shape the final stretch. Inflation, fuel prices, public debt, household indebtedness and security concerns remain central to voters who are not strongly attached to either political camp. Bolsonaro is emphasizing change, tax reform and opposition to Lula-era policies. Lula is repositioning his campaign around social protections, employment and warnings about what his administration argues could be lost under a Bolsonaro government. Both strategies are aimed at citizens whose votes are still politically movable.
The deeper issue is voter fatigue. Brazil is highly polarized, but polarization does not automatically produce enthusiasm. A significant part of the electorate appears distrustful of both camps, frustrated with scandal and exhausted by years of political confrontation. That makes abstention more than an electoral statistic. It becomes a form of political behavior in itself.
The second round will therefore test two different capacities: who can persuade undecided voters, and who can convince absent voters that participation is worth returning for.
Elections are not decided only by those who choose. Sometimes they are decided by those who finally show up.