Brazil's Supreme Court Faces Institutional Crisis Over Banking Scandal and Internal Feuds

Brazil's Supreme Court (STF) is embroiled in a severe institutional crisis as justices exchange accusations of corruption and political bias. The turmoil centers on Justice Alexandre de Moraes and his alleged links to Daniel Vorcaro, the former head of Banco Master, who was arrested in November 2025 for defrauding investors. The conflict escalated when Justice Andre Mendonca unsealed Federal Police documents containing messages from Vorcaro to Moraes. In response, Moraes accused Mendonca of abusing his authority for political gain and requested a probe into Mendonca's conduct. Chief Justice Edson Fachin has scheduled a full bench session for Tuesday, October 15, to decide if Moraes should be investigated.

The crisis has spilled over into the legislative and international arenas. In the Senate, opposition lawmakers are pressuring President Davi Alcolumbre to initiate impeachment proceedings against Moraes, citing public protests on September 7. Meanwhile, reports indicate that the U.S. government under Donald Trump is monitoring the situation and considering new sanctions against Moraes and other Brazilian authorities, potentially using the Magnitsky Act. The internal strife is further complicated by the upcoming general elections, with candidates including President Luiz Inacio Lula da Silva and Senator Flavio Bolsonaro. Both sides are expected to leverage the court's instability for political gain.

To manage the fallout, Chief Justice Fachin has removed Moraes from the relatorship of the fake news inquiry and prohibited Mendonca from advancing investigations that could target other justices. There are ongoing discussions within the court about whether to keep the October 15 session public or implement a transmission delay to prevent edited clips from being used as campaign ammunition on social media. The British magazine The Economist has described the situation as a threat to Brazilian democracy, noting that the defenders of democracy have themselves become a threat.