Brazil reaches the election with its top court under suspicion and the candidates tied

Brazil is voting in a presidential election next Sunday, beginning with a first round. The central contest is between incumbent President Lula and Flávio Bolsonaro, Jair Bolsonaro’s chosen successor. The race matters because neither candidate is close to the majority needed to win immediately.

The latest Datafolha poll gave Lula 40% and Flávio 36% among 2,002 voters. Other polls by Quaest, BTG/Nexus, and AtlasIntel produced different numbers. Although individual estimates vary, the article says every poll places the two leading contenders within its margin of error. That makes the contest politically unsettled.

The apparent tie does not mean both candidates received exactly the same support. It means polling differences and uncertainty make a clear leader difficult to establish. Lula led a prospective runoff 47% to 45%, also a close result. The campaign could therefore turn on undecided voters, turnout, and events surrounding the Supreme Court crisis.

Brazil’s Supreme Federal Court is the country’s highest court for constitutional questions. It protects the Constitution and decides major disputes involving public authorities. Because it can investigate or supervise cases involving powerful political figures, its actions can shape national politics as well as legal outcomes.

In the Banco Master investigation, the court ordered the arrest of former bank owner Daniel Vorcaro over alleged fraud of up to 12 billion reais. Justice André Mendonça, appointed by Jair Bolsonaro, is responsible for a central part of the investigation. The court’s president, Edson Fachin, later ordered the case files unsealed.

The court itself then became part of the controversy. A law firm belonging to Justice Alexandre de Moraes’s wife had held a bank contract. Police also found about a hundred messages between Vorcaro and Moraes before the arrest. No irregularity by any justice has been established, but the connections have intensified political attacks and public concern.

The candidates are separated by only four percentage points in Datafolha’s first-round survey and two points in its projected runoff. Datafolha questioned 2,002 voters and reported a two-point margin of error. Earlier surveys by Quaest, BTG/Nexus, and AtlasIntel gave different results, but all remained close enough to keep the outcome uncertain.

A margin of error measures sampling uncertainty. If a poll reports 40% support with a two-point margin, the actual figure could reasonably be around 38% to 42%, under the poll’s stated assumptions. The margin does not predict the result or capture every possible polling problem, such as turnout errors or changing opinions.

That uncertainty is why the article describes the leading contenders as tied within the margin of error. Lula appears ahead in the latest figures, but not decisively. Neither candidate reaches 50% plus one, so the race is likely to continue into a runoff unless polling or voting patterns shift sharply.

The allegations connect three parts of the case: Vorcaro’s banking activities, Flávio Bolsonaro’s financial and political contacts, and relationships involving Supreme Court figures. Flávio has been formally under investigation since July. The investigation concerns alleged money laundering, currency evasion, and corruption, including contacts with Vorcaro and financing for the film “Dark Horse.”

Vorcaro was arrested on Supreme Court orders over alleged fraud that could reach 12 billion reais. Separately, a law firm belonging to Justice Alexandre de Moraes’s wife had a contract with the bank. Police also found about a hundred messages between Vorcaro and Moraes in the three weeks before the arrest. Justice André Mendonça acknowledged meeting Vorcaro once.

These facts explain the political uproar, but they do not establish guilt. Flávio has not been formally indicted or convicted. No irregularity has been established regarding any Supreme Court justice. A judge also ordered removal of false online claims that Flávio faced an arrest warrant.

Brazil uses a two-round presidential system when no candidate wins the required majority in the first round. The purpose is to ensure that the eventual president receives majority support in a final contest, rather than winning with only a divided plurality. This makes the first round both an election and a ranking of the strongest contenders.

The article says neither Lula nor Flávio Bolsonaro approaches the 50% plus one needed to win outright. In the first round, Datafolha reported Lula at 40% and Flávio at 36%. Since neither reaches the threshold, the two leading candidates would advance to a second vote. Other candidates would then no longer compete for the presidency.

The projected runoff is set for October 25. Datafolha currently gives Lula 47% and Flávio 45%, a narrow advantage. The campaign would therefore change after the first round, with candidates seeking support from eliminated rivals and undecided voters. The Supreme Court controversy could also influence that final choice.

Jair Bolsonaro’s legal troubles transformed the right’s route to the presidency. He was sentenced on September 11, 2025, to 27 years and three months for attempting a coup and four other offences. He is barred from office and under house arrest with an electronic tag. These restrictions prevent him from returning as the candidate himself.

Instead, Bolsonaro designated his eldest son, Flávio, as his successor. Flávio is a senator for Rio de Janeiro after 16 years as a city councillor, although establishment figures preferred a candidate without the family name. His candidacy preserves Bolsonaro’s political brand and its moral-conservative and evangelical appeal while transferring the formal campaign to a new candidate.

The strategy also gives the election a clear legal and institutional promise. Flávio says his priorities would include amnesty for his father and joining Trump’s proposed regional security alliance. His rise shows the movement’s resilience, but it also keeps the campaign tied to Bolsonaro’s conviction, house arrest, and conflict with the courts.

A constitutional court guards the rules that limit government power. In a democracy, people must believe that its decisions follow law rather than personal or partisan interests. If trust collapses, even lawful rulings may be dismissed as persecution, weakening elections, rights, and peaceful transfers of power.

Judicial independence is one part of the balance. Judges need protection from political retaliation so they can investigate powerful officials and enforce constitutional limits. Accountability is the other part. Courts should use clear procedures, disclose relevant records, follow conflict-of-interest rules, and permit lawful review or disciplinary action when evidence shows misconduct. Independence does not mean immunity from scrutiny.

The Banco Master case illustrates the tension. The court ordered Vorcaro’s arrest, while links involving a justice’s family law firm and messages with Vorcaro prompted questions. Fachin ordered the files unsealed, and no irregularity by a justice has been established. Transparent evidence and fair process are therefore essential to preserve legitimacy.