The mechanism is elegant in its destructiveness: the judge who sentenced Jair Bolsonaro to 27 years for attempting a coup is now credibly accused of corruption, and the institution he represented — Brazil's supreme court — is fracturing on live television. Flávio Bolsonaro, the former president's senator son, has emerged as the presidential frontrunner heading into the 25 October runoff, and his campaign's core message is not about policy but about a single man: Justice Alexandre de Moraes. The scandal traces to Daniel Vorcaro, the banker behind what investigators call Brazil's largest banking fraud. His Banco Master allegedly ran a scheme of aggressive fundraising, unrealistic returns, and falsified balance sheets that left an estimated £9bn hole, much of it involving public money and pensioners' savings. Vorcaro was arrested in November while attempting to board a private jet from São Paulo to Malta. A police investigation then uncovered that Moraes's wife's law firm held a contract worth about £20m with Vorcaro, and text messages suggest a close relationship between the justice and the banker — though Moraes denies the messages are authentic. The contamination didn't stop at Moraes. At least four other justices have links to Vorcaro, meaning half of the court's ten current justices are implicated. Connections range from an £800,000 loan taken by an institute created by Justice André Mendonça (a Jair Bolsonaro appointee) to a £64m contract and an alleged stake in a fund that received £5.2m from Vorcaro. All deny wrongdoing. The crisis peaked last month when Moraes and another justice traded insults during a televised session, followed by a series of rulings in which aligned judges overruled one another — spectacle that dominated public debate for weeks. Lula, after losing the first round, blamed having to "carry on his back the promiscuity" of the supreme court. His campaign coordinator said the president "paid the price for that institutional damage." Political scientist Camila Rocha, who has been interviewing undecided voters, found a consistent pattern: people saw the court as corrupt and identified Moraes — precisely the judge who jailed Jair Bolsonaro — as the principal villain. For voters already split between roughly equal left and right blocs, the scandal tipped indecisive voters toward anti-system sentiment that feeds the far right. Constitutional law professor Conrado Hübner Mendes argues Moraes created this vulnerability by "embracing the role of heroic protagonist" — blocking Jair Bolsonaro's moves, drawing the ire of Musk and Trump, becoming a polarizing figure whose legitimacy depended entirely on personal moral authority. When the corruption allegations hit, that authority evaporated instantly. "He took on a huge responsibility, and now he has thrown that away in the most mediocre way possible," Mendes said. The scandal reached Lula's orbit on Friday when Veja magazine reported that Vorcaro allegedly paid £4.5m to finance a 2024 Oliver Stone documentary about the president. Federal police and prosecutors said Vorcaro had neither made nor evidenced that claim in testimony; Lula denied receiving money. Meanwhile, Flávio Bolsonaro himself is under investigation over £20m he was caught on tape asking Vorcaro to provide for a biopic about his father — with suspicions the money helped cover expenses for his brother Eduardo's lobbying operation in the US. The structural damage extends beyond the presidency. The far right's sweeping first-round victory delivered an even more conservative congress for 2027, including the senate majority needed to impeach supreme court justices — a longstanding Bolsonarista demand. Even without impeachment, a Bolsonaro presidency could fill four seats as justices retire. As Mendes put it: "With the scandal, the justices handed Bolsonarismo something it still didn't have: an impeachable offence that could justify their removal." The institution built to check authoritarian power has become the instrument of its return.
