Any Brazil STF Justice removed by impeachment before 2027?

Prediction markets put the probability at 11%: Any Brazil STF Justice removed by impeachment before 2027. Currently, markets see this as unlikely (11% YES).

What’s Happening

The most recent procedural development came on December 3, 2025, when Justice Gilmar Mendes of Brazil's Supreme Federal Court (STF) issued a ruling that sharply raised the bar for removing any sitting justice. Mendes determined that only the prosecutor general holds the authority to formally request the impeachment of an STF justice, and that opening such a process requires the support of two-thirds of the Senate rather than a simple majority. The ruling directly addresses the central question of whether any Brazil STF justice removed by impeachment is a realistic near-term outcome, and it drew immediate backlash from opposition lawmakers who accused the Court of shielding its own members from legislative accountability. [Valor International, Dec 04]

The stakes are procedural and constitutional. Brazil's Senate has 81 members, meaning a two-thirds threshold requires 54 votes to advance a removal — a margin the current opposition bloc, led by allies of former president Jair Bolsonaro, does not command. Multiple impeachment requests have targeted justices such as Alexandre de Moraes over the Court's handling of election-integrity and disinformation cases, but none has cleared committee review. By concentrating filing authority in the office of the prosecutor general, Mendes's interpretation effectively removes the ability of individual senators or citizens to trigger the process, narrowing the path for any Brazil STF justice removed by impeachment before the constitutional window closes. [Valor International, Dec 04]

What comes next hinges on whether the full STF upholds Mendes's monocratic decision and on the composition of the Senate following the October 2026 general election, which renews one-third of the chamber. Opposition leaders have signaled they will challenge the ruling and press new filings, but any successful vote would need both a prosecutor general's referral and the elevated 54-vote supermajority before the end of 2026. With no request currently past committee and the procedural ceiling now higher, the near-term probability of any Brazil STF justice removed by impeachment remains constrained by legislation and arithmetic rather than political appetite alone. [Valor International, Dec 04]

Traded on Polymarket — $86K Volume

Lower-volume market on Polymarket ($86K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 11c YES.