Brazil’s Supreme Court justices enjoy lifetime tenure until age 75 and can only be removed through Senate impeachment for crimes of responsibility, a process that has never succeeded against any STF justice. Recent pressure stems from a September 2026 internal court dispute and Federal Police report linking Justice Alexandre de Moraes to messages with a banker in the Banco Master fraud case, prompting over 55 impeachment petitions and calls from right-wing lawmakers. Chief Justice Edson Fachin removed Moraes from one major inquiry amid accusations traded with Justice André Mendonça, yet the Senate president has not advanced any complaints. Although legislative elections strengthened opposition numbers close to the 54-vote threshold needed, the agenda remains controlled and historical precedent plus procedural requirements continue to anchor trader expectations that Moraes remains in office.