The Lula Bolsonaro debate was supposed to be the moment Brazil's undecided voters finally got answers. Instead, the first televised clash between President Luiz Inácio Lula da Silva and Senator Flávio Bolsonaro turned into two hours of insults, one week before the presidential runoff.

The showdown aired on Band TV from São Paulo on Sunday night. It was the first face-to-face meeting of the two finalists, and according to Euronews, it ended up an acrimonious personal brawl rather than a policy discussion.

How the Lula Bolsonaro debate got personal

Bolsonaro, forty-five, is the son of far-right former president Jair Bolsonaro. He stunned pollsters earlier this month by finishing first in the opening round of voting. Lula, eighty, is chasing a fourth, non-consecutive term in office.

Euronews reports that Bolsonaro tried to rattle his older rival by pacing behind him in view of the camera, shaking his head, smirking and scoffing while Lula spoke. "Brazil is going to retire you," Bolsonaro said. Lula hit back by calling him "a habitual liar, a thug" and saying he wanted distance from a "militiaman," a jab at Bolsonaro's alleged links to paramilitary groups in Rio de Janeiro.

According to Al Jazeera, Bolsonaro answered that keeping Lula at a distance was wise because a wallet might get stolen nearby. At one point he even showed a note written on the palm of his hand that read "corrupto," the Portuguese word for corrupt.

What they actually argued about

Between the barbs, the two men did touch on the issues voters care about: the economy, public security, healthcare, corruption and Brazil's relationship with the United States. The Associated Press, as carried by ABC News, said the broadcast lasted about two hours and that analysts hoping for outreach to undecided voters were left disappointed.

Lula pressed Bolsonaro on his reported plans to copy the deep "chainsaw" spending cuts of Argentina's president Javier Milei, which brought higher unemployment and reduced benefits. Taipei Times coverage of the debate says Bolsonaro dodged the question and pivoted to other subjects.

The tensest moment, according to the Associated Press, came when Lula challenged Bolsonaro to open both candidates' personal finances to scrutiny, so authorities could flag any suspicious transactions before voters go to the polls.

Why this matters for the runoff

The numbers explain the stakes. In the first round on October fourth, Bolsonaro took forty-seven percent of the vote to Lula's forty-five percent, according to AFP reporting. The BBC says polls now show the two neck and neck, and that the debate was billed as a chance to sway the few voters still on the fence.

Analyst Lucas Aragão of the firm Arko Advice told the BBC that Bolsonaro appeared calmer and seemed to get under Lula's skin. Analysts also warned that the aggressive tone could push more people to skip the vote altogether, which could matter in a race this tight.

The chaos was not limited to the candidates. CNN Brasil reported that members of the two delegations got into arguments in the final block that interrupted the closing statements. Earlier in the day, tens of thousands of supporters had marched in São Paulo, Rio de Janeiro and other cities, the AP reported.

What to watch before Sunday

The runoff is set for October twenty-fifth, and this was only the first of two scheduled debates. The next one gives both camps another chance to either calm the tone or lean even harder into personal attacks.

Corruption is a top worry for many Brazilian voters, and experts quoted by Euronews say its biggest effect may be on turnout rather than on who people pick. If frustrated voters stay home, the margin could come down to a few points.

For young Brazilians watching online, the debate offered plenty of viral clips but few details on jobs, prices or safety. That gap is exactly what undecided voters were hoping to see filled. Follow our politics coverage for more updates as the countdown to Sunday continues.