Brazil Election Interference Claim Reaches Two Top Courts
Brazil · Elections
Key Facts
- —What happened Brazil’s governing Workers’ Party asked the Supreme Federal Court on 23 September 2026 to order a Federal Police inquiry.
- —Who is named Senator Flávio Bolsonaro, his running mate Alfredo Gaspar and former deputy Eduardo Bolsonaro, in a separate electoral court action.
- —The allegation That a Brazil election interference effort run from the United States is unlawfully favouring the opposition presidential ticket.
- —The catch No court has ruled on any of this, and nobody has been charged over these allegations.
- —Why it matters Brazil votes in the first round on Sunday 4 October 2026, less than two weeks after the two filings.
- —Who governs Brazil President Luiz Inácio Lula da Silva, of the Workers’ Party, is seeking another term in the October vote.
Ten days before Brazilians vote, President Lula’s party and his campaign alliance have asked two courts to examine a Brazil election interference claim aimed at his main rival.
A Brazil election interference case landed at two of the country’s highest courts on Wednesday 23 September 2026. It was brought by the governing Workers’ Party and by the alliance backing President Luiz Inácio Lula da Silva.
Brazil chooses a president on Sunday 4 October 2026, with a runoff on 25 October if nobody wins outright. His party and his alliance say American money and American accounts are tilting that vote.
It wants judges to find out. Flávio Bolsonaro’s campaign says it knew nothing of the advertising, and no court has decided anything.
What was filed, and where
One document went to the Supreme Federal Court, Brazil’s highest court, and specifically to Justice Flávio Dino. It is a petition inside a case Dino already handles.
In that case he ruled that measures taken by foreign governments cannot reach Brazilians without a basis in Brazilian law. The party wants that protection stretched across every stage of the election.
It also asks him to order an inquiry by the Federal Police, Brazil’s national investigative force. That is a request for an investigation, not a charge.
The second document went to the Superior Electoral Court, which runs and polices Brazilian elections. There the filing is an electoral judicial investigation action, the standard tool for alleging abuse of power in a campaign.
It was lodged by Brasil Pronto Pra Mais, the alliance of parties backing Lula. It names three people.
Separately, a rival candidate filed his own complaint at the same court that day. Renan Santos, of the small Missão party, pointed to the same posts.
The three people named at the electoral court
Flávio Bolsonaro is a senator for the state of Rio de Janeiro, in office since 1 February 2019. He is the Liberal Party candidate for president and the eldest son of former president Jair Bolsonaro.
Alfredo Gaspar is his running mate. He is a federal deputy for the state of Alagoas and a former state prosecutor general.
Eduardo Bolsonaro is Flávio’s brother and no longer holds office. The Chamber of Deputies declared his seat lost on 18 December 2025 for missing more than a third of its voting sessions.
He had travelled to the United States in March 2025 and did not go back when his leave ended. The alliance accuses the three of abuse of economic and political power.
What the filings actually allege
The core claim concerns advertising. Between 18 and 21 September 2026, accounts based outside Brazil ran boosted posts on X praising Flávio Bolsonaro.
The posts carried a “paid partnership” label but no named funder, according to the petition. Revista Fórum counted at least eleven such accounts.
Among those cited are the former American congressman Matt Gaetz and the account UHN Plus. The posts used odds from Polymarket, a betting platform, to present the candidate as the favourite.
The party says the spending may amount to campaign funding and propaganda of foreign origin, which Brazilian law forbids.
A second line concerns Rockbridge Network, an American conservative group co-founded by the United States vice-president, JD Vance. The party asks the court to establish whether it or people linked to it gave anything of value.
A third asks whether Brazilian companies with structures abroad channelled money or services to the Liberal Party or its foundation. The filing also seeks orders compelling X, Meta and Polymarket to preserve records within 72 hours.
Nobody has been charged over these claims
The petition is candid about its own gaps. It says it was not possible to identify who paid for the posts.
On the Rockbridge line, the document records the denials of the people it names. It states that there is still no proof that any money reached the campaign.
On the corporate line it says the links it has found do not, on their own, prove foreign funding. No prosecutor has brought a case over these claims, and no judge has ruled on them.
Flávio Bolsonaro’s campaign said it had no knowledge of the advertisements, CNN Brasil reported. Gazeta do Povo said it approached the senator through his press office and had not received a reply.
Earlier the same day, the United States rejected the broader accusation. State Department spokeswoman Amanda Roberson told CNN Brasil that working inside other countries’ elections is not part of American strategy.
“We never said anything like that about interference,” she said. “What we did talk about was Brazil’s sovereignty.”
Roberson said the United States wants a free and transparent vote in a sovereign, independent Brazil. She said it would work with whoever Brazilians elect.
Why the Brazil election interference filing went to Dino
The Superior Electoral Court is led by Justice Nunes Marques, elected president on 14 April 2026 and sworn in that May. His deputy is Justice André Mendonça.
Both were appointed to the Supreme Court by Jair Bolsonaro. Justice Dino was appointed by Lula and served as his justice minister.
The CNN Brasil columnist Caio Junqueira wrote that the party had steered an electoral question to a friendlier judge. An Estadão column said Lula had manoeuvred to keep the inquiry with Dino.
Flávio Bolsonaro has been making the opposite complaint for months. He told the Flow Podcast in July 2026 that a Supreme Court panel was becoming a bypass of the electoral court.
The party’s own argument rests on that earlier ruling. It says the sponsored posts broke the injunction Dino granted in 2025.
What each court could do
The Supreme Court petition asks for an inquiry and for protective orders, not for punishment.
The electoral action is where the penalties sit. If the abuses are recognised, the alliance wants the registrations of Flávio Bolsonaro and Gaspar annulled.
It also asks that Flávio and Eduardo Bolsonaro be barred from office for eight years. The party said in a statement that those penalties are sought only from the electoral court.
Angelo Ferraro, the Lula campaign’s legal coordinator, put the request narrowly. “What we are asking is that the facts be clarified,” he said.
He pointed to the origin of the money and the role of foreign actors. A sovereign election, he said, requires transparency about who is funding efforts to sway voters.
No decision from either court had been reported by early on Thursday 24 September 2026. Under Brazilian law, those named in such investigations have five days to answer once notified.
More: Brazil coverage, every day from The Rio Times.
Frequently Asked Questions
Has anyone been charged over these allegations?
No. Both documents were filed on 23 September 2026 by President Lula’s party and by the alliance backing him, and both ask a court to look into the claims. The Supreme Court petition seeks an inquiry by the Federal Police, which is a request for an investigation rather than an accusation brought by a prosecutor. The petition itself records that those it names have denied the claims and that it has no proof that money reached the campaign. No judge has ruled on any of it.
What is the difference between the two courts?
The Supreme Federal Court is Brazil’s constitutional court and its highest tribunal. The Superior Electoral Court is the specialist body that organises elections, registers candidates and polices campaign conduct, and it can annul a candidacy or bar a politician from office. The Workers’ Party petitioned the Supreme Court for an inquiry and for protective orders. The alliance behind Lula went to the electoral court for the penalties.
Is Eduardo Bolsonaro still a member of Congress?
No. The Chamber of Deputies declared his seat lost on 18 December 2025, after he missed more than a third of its voting sessions, according to the chamber’s own notice and to Agência Brasil, the state news agency. He had gone to the United States in March 2025 and did not return when his parliamentary leave ended that July. His brother Flávio Bolsonaro remains a senator for Rio de Janeiro and is the Liberal Party candidate for president.
What is the Brazil election interference claim about?
It is the argument that pressure, money and online campaigning from the United States are being used to help the opposition candidate, Senator Flávio Bolsonaro. The Workers’ Party points to paid posts on X by accounts based abroad between 18 and 21 September 2026, to the American conservative network Rockbridge, and to earlier American tariffs and sanctions aimed at Brazil. Those it names deny the claims, and the party told the court it has no proof that money reached the campaign.
Sources: Gazeta do Povo on both filings and what they ask for, CNN Brasil on the four lines of inquiry and the campaign’s reply, CartaCapital on the Supreme Court case and its rapporteur, O Tempo on the electoral court action, Estadão Conteúdo wire copy quoting the campaign’s lawyer, CNN Brasil on the American denial, Revista Fórum on the paid posts, Chamber of Deputies notice declaring Eduardo Bolsonaro’s seat lost, Agência Brasil on the same decision, Superior Electoral Court on its current leadership, Jovem Pan profile of Alfredo Gaspar, CNN Brasil column on the choice of court, Metrópoles on Flávio Bolsonaro’s own complaint about the Supreme Court, Superior Electoral Court on the 2026 election dates
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