Brazil votes in knife-edge election: Lula and Flavio Bolsonaro deadlocked amid corruption probe and foreign interference claims

Brazilians head to the polls on Sunday in a presidential election that is as tight as it is consequential. With incumbent Luiz Inácio Lula da Silva and right-wing challenger Flavio Bolsonaro virtually tied in the latest polls, the outcome could hinge on a handful of undecided voters — or be pushed to a runoff on October 25.

As we reported last month, the race has narrowed significantly since August. A Quaest poll released on September 22 showed Bolsonaro with 42 percent support in a simulated runoff, versus 41 percent for Lula, while a BTG Pactual/Nexus poll had Lula at 46 percent and Bolsonaro at 45 percent Al Jazeera. Independent polling earlier in September already pointed to a tightening race Al Jazeera.

Corruption probe hangs over Bolsonaro campaign

Just weeks before election day, Brazil’s Supreme Court unsealed documents showing that Senator Flavio Bolsonaro is under investigation for corruption, money laundering, and tax evasion. The probe centers on his ties to Daniel Vorcaro, the former head of failed lender Banco Master, who is accused of orchestrating a $2.3 billion fraud affecting 800,000 clients Al Jazeera. According to court documents, Vorcaro transferred about $12 million to a US-based fund linked to Flavio’s brother, Eduardo Bolsonaro, allegedly to finance a film portraying their father, former President Jair Bolsonaro, in a favorable light. Eduardo has denied the funds were bribes.

Allegations of US interference

The election has also been roiled by claims of foreign meddling. On October 1, Attorney General Jorge Messias called for a law enforcement probe into reports that the Trump administration planned to award $1 million to right-wing civil groups opposing the Brazilian Supreme Court. The report, published by The Guardian, was described by Messias as “an important alert for Brazilian sovereignty” Al Jazeera. Lula has repeatedly warned against foreign interference, while Flavio Bolsonaro has maintained close ties to Trump allies.

Final rallies and what’s next

Both candidates held their final campaign rallies on October 3. Lula drew thousands in Rio de Janeiro, while Bolsonaro mobilized supporters in Montes Claros, a city in the interior Al Jazeera.

If no candidate wins more than 50 percent of valid votes in the first round, the top two — almost certainly Lula and Bolsonaro — will face off in a runoff on October 25 Al Jazeera.

What this means for Brazil — and beyond

For international observers, the election is a test of democratic resilience in Latin America’s largest economy. Lula, a leftist former president, is seeking a fourth non-consecutive term, while Flavio Bolsonaro represents a continuation of the far-right movement led by his father, Jair Bolsonaro, who was barred from office after being convicted of abuse of power and conspiracy to overturn the 2022 election. The outcome will shape Brazil’s stance on climate policy, trade, and regional alliances — issues that also resonate with the global community, including the many expats and internationals living in the Netherlands who follow Brazilian affairs or have ties to the country.

As voting gets underway, all eyes are on whether Brazilians will deliver a decisive verdict or set the stage for another three weeks of campaigning.