Flávio Bolsonaro, a Brazilian senator and leading 2026 presidential contender, faces multiple investigations, including a Supreme Court-authorized probe into alleged defamatory statements about President Lula and scrutiny over financial ties to a disgraced banker in the Banco Master case, with leaks surfacing in May 2026. Earlier proceedings, such as the rachadinha embezzlement allegations, have been dismissed or stalled by higher courts. As a sitting senator with parliamentary privileges and an active campaign role, formal charges or arrest would require overcoming procedural thresholds and Senate dynamics. No major new indictments have advanced recently, supporting trader expectations that action is unlikely before the September 30 deadline.