Key Points
— Justice Kassio Nunes Marques was elected president of the Tribunal Superior Eleitoral (TSE) on Tuesday evening in a symbolic vote, becoming the first Bolsonaro-appointed justice to lead the court that oversees Brazilian elections.
— He will preside over the October 2026 congressional and gubernatorial elections—the most polarized since 2022—in which Lula faces Flávio Bolsonaro in a race now polling within 1 point.
— Nunes Marques pledged to run “peaceful elections” and has been assigned as rapporteur of the opposition mandamus seeking to force a Banco Master CPI—placing him at the intersection of judicial politics and electoral oversight simultaneously.
The justice nominated by the man whose son is running for president will now oversee the election that decides whether that son wins. Brazilian institutions run on the assumption that this works.
Nunes Marques TSE president became official on Tuesday evening when the Tribunal Superior Eleitoral held a symbolic vote to install him as its new chief, replacing the outgoing presidency in a routine rotation that carries extraordinary political weight in 2026. The Rio Times, the Latin American financial news outlet, reports that Nunes Marques is the first justice appointed by former President Jair Bolsonaro to lead the electoral court, and he assumes the role during what polls show is the tightest presidential race since 2014.
Why the Nunes Marques TSE Appointment Matters
The TSE president controls the administrative machinery of Brazilian elections: ballot logistics, campaign finance oversight, advertising rules, and the enforcement of electoral law including disqualifications and abuse-of-power findings. In 2022, then-TSE President Alexandre de Moraes used the court’s authority aggressively to combat disinformation and sanction campaigns that violated electoral norms—decisions that Bolsonaro’s allies described as partisan overreach.
Nunes Marques pledged to conduct “peaceful elections” and signaled a less interventionist posture. During the CPI do Crime Organizado session on Tuesday, he expressed “solidarity” with the STF justices targeted for indictment—a gesture that places him within the court’s institutional consensus but also signals alignment with colleagues whose conduct is under public scrutiny.
The Banco Master Overlap
Nunes Marques is simultaneously the STF rapporteur assigned to the opposition’s mandamus seeking to force Senate President Alcolumbre to install a dedicated Banco Master CPI. That case remains active even after the CPI do Crime Organizado was dissolved on Tuesday. Reporting has also linked Nunes Marques to the broader Master network: he and his wife traveled to Maceió on a private jet belonging to a company connected to Daniel Vorcaro, paid for by a lawyer who represents the bank in court proceedings.
The October Stakes
Brazil’s October election will choose 513 federal deputies, 27 senators, 27 governors, and—if Lula runs as expected—the president, in a race where Datafolha shows Flávio Bolsonaro at 46% and Lula at 45%. Every procedural decision the TSE makes on campaign advertising, disinformation enforcement, and candidate registrations will be scrutinized for partisan bias under a president appointed by the father of one of the candidates. Nunes Marques inherits a court that 75% of Brazilians believe holds too much power, in an election where institutional credibility may matter as much as votes.
Related Coverage: Datafolha: Flávio 46% vs Lula 45% • Banco Master Scandal: Complete Timeline