BRAZIL · ELECTIONS
Published Friday, 16 October, 3:22 p.m. ET · Source: Brazil’s Superior Electoral Court (TSE), via Brazilian press reports
Key Facts
- The country Brazil, Latin America’s largest country, elects its president in a runoff on Sunday 25 October between President Lula and Senator Flávio Bolsonaro.
- What happened Brazil’s electoral court (TSE) rejected urgent requests from Flávio’s campaign to restrict unions and student groups backing Lula, in a ruling made public on Friday 16 October.
- The ruling Electoral inspector-general Ricardo Villas Bôas Cueva refused emergency orders against union structures, university campaign materials and social media data requests, but kept the case open.
- The deadlines Flávio’s campaign has 72 hours to name specific conduct for 37 of 54 leaders, and Lula, his running mate Geraldo Alckmin and five union leaders have five days to respond.
- Power Index Brazil ranks 1st of 14 in The Rio Times Latin America Power Index, with 75.0 points (October 2026 edition).
- Prediction markets Polymarket gives Flávio Bolsonaro a 76.7% chance of winning the 25 October runoff and Lula 22.5% (16 October, 3:13 p.m. ET). Polymarket puts Flávio Bolsonaro’s chance of winning at 76% and Kalshi at 77% (Lula: 24% and 23%), as of 16 October, 4:20 pm ET; prices are bets, not polls.
- Still open Whether the 37 leaders stay in the case depends on what Flávio’s campaign files within 72 hours.
Brazil’s electoral court rejected a bid by Flávio Bolsonaro’s campaign to restrict unions and student groups that back President Lula, in a ruling made public on Friday 16 October. In a single-judge ruling, Minister Ricardo Villas Bôas Cueva found the request too broad, but he kept an investigation into the alleged use of union resources alive.
The decision comes nine days before the Brazil election 2026 on Sunday 25 October, which will decide who runs Latin America’s largest economy. Flávio Bolsonaro is a conservative senator for Rio de Janeiro, and Luiz Inácio Lula da Silva is Brazil’s president seeking a new term.
What the Electoral Court Decided
Cueva is the court’s electoral inspector-general, the judge who investigates abuse of power in campaigns. He denied emergency orders that would have barred unions from using their structures in campaign activity and limited campaign material in university spaces. He also refused a request that Meta, X and Google preserve records of posts as too sweeping, Congresso em Foco reported.
The minister said support for or opposition to a candidacy is not automatically irregular propaganda, according to Metópoles. He wrote that blanket orders could restrict free speech, free association and union organising.
The Case Against Lula and Union Leaders
Flávio’s campaign filed the action against Lula, Vice President Geraldo Alckmin and 54 leaders of unions, union federations, student groups and social movements, Congresso em Foco reported. The targets include the National Union of Students (UNE), a student organisation that backs Lula.
Cueva noted that 37 of the 54 leaders were not named individually in the description of facts or in the legal arguments. Flávio’s campaign now has 72 hours to describe what each one did, Congresso em Foco reported.
Lula, Alckmin and five union leaders have five days to submit a defence, according to Brasil 247. The investigation into the alleged use of union resources and facilities continues.
Why Unions and Students Matter in the Runoff
Unions and student groups are among the most organised parts of Lula’s coalition, and they mobilise voters through members, buildings and social media. Flávio’s campaign argued that this support crosses into abuse of economic and political power.
The court has not agreed, at least for now, and it left the rules on individual conduct to the investigation. Our report on the court’s WhatsApp campaign rules shows how the electoral court is also setting limits on online campaigning.
What It Means for US Readers
For investors in Brazilian stocks, bonds or US-listed Brazilian shares, the ruling removes one source of legal uncertainty around the Lula campaign before 25 October. It does not settle the race, which polls show is close, and the case can still produce sanctions later.
For anyone following US-Brazil relations, the dispute shows how strictly Brazil’s courts police campaign speech and organised political support. Both campaigns are likely to keep taking disputes to the court until the vote.
What Prediction Markets Say
On Polymarket, an online prediction market, bettors give Flávio Bolsonaro a 76.7% chance of winning the 25 October runoff and Lula 22.5% (16 October, 3:13 p.m. ET). The “Brazil Presidential Election” market has drawn about US$184.8 million in total bets.
These are bets, not polls, and they can move fast on court rulings and new surveys.
Prediction markets · who wins the runoff
Implied chance of winning Brazil’s presidency on 25 October, from traders’ prices.
Polymarket
Flávio Bolsonaro 76.3% · Lula 23.5% (US$185 million traded)
Kalshi (regulated in the US by the CFTC)
Flávio Bolsonaro 77% · Lula 23%
As of 16 October, 4:20 pm ET (21:20 Lisbon), updated every 20 minutes. Prices are bets, not polls, and can move fast.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
What Is Not Known
It is not known how Flávio’s campaign will answer within 72 hours, or how many of the 37 leaders will remain in the case. The court has not said when it will rule on the substance of the allegations.
It is also not known whether any sanction could come before the vote on 25 October. Cueva’s order concerns the investigation and does not decide whether any rule was broken.
More: Brazil news in English, every day from The Rio Times.
Frequently Asked Questions
What did Brazil’s electoral court decide about unions and Lula?
Minister Ricardo Villas Bôas Cueva rejected urgent orders that would have restricted unions and student groups backing Lula. He kept the investigation open and made it narrower.
Who asked the court to restrict unions and students?
Flávio Bolsonaro’s campaign filed the action against Lula, Vice President Geraldo Alckmin and 54 union, student and social movement leaders. It argued their support for Lula was abuse of power.
What deadlines did the court set?
Flávio’s campaign has 72 hours to describe what 37 of the leaders did. Lula, Alckmin and five union leaders have five days to respond.
When is Brazil’s runoff?
Brazilians vote on Sunday 25 October, nine days after this ruling was made public. The winner takes office as president for a four-year term.
Is it illegal for unions to support a candidate in Brazil?
The court said support for or opposition to a candidacy is not automatically irregular propaganda. Whether specific conduct broke the rules is being examined case by case.
Sources: Congresso em Foco, 16 October 2026; O Povo, 16 October 2026; Metópoles, 16 October 2026; Brasil 247, 16 October 2026.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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