Scan: Alexandre de Moraes out as Brazil Supreme Court Justice?

1. Planner Fable 5.1 · Fermi decomposition + tool plan

Tools chosen: polymarket_direct polymarket_related kalshi_related article_search claude_news gdelt_news wikipedia

Sub-questions (Fermi decomposition)

What is the current Polymarket YES price and how has it trended over the past 90 days?
Has the Brazilian Senate President (Alcolumbre) or any Senate majority signaled willingness to advance any of the impeachment requests against Moraes, and what is the vote math?
How have US sanctions (Magnitsky Act designation, visa revocations) against Moraes evolved, and is there evidence they are pressuring him toward resignation or inducing the STF/government to remove him?
Are there any reports of Moraes taking a leave of absence, health issues, or considering resignation or a move to another post (e.g., TSE, political office) before end of 2026?
What is the historical base rate of STF justices leaving office before mandatory retirement (age 75) other than by death, and has any STF justice ever been impeached?
How would the October 2026 Brazilian general election (new Senate composition, presidential outcome) affect the likelihood of removal before Dec 31, 2026, given the new Congress only takes office in Feb 2027?

Planner reasoning

Alexandre de Moraes is a sitting STF justice with mandatory retirement at 75 (he was born Dec 1968, so no age-out before 2027). The main paths to 'Yes' are impeachment by the Senate (requires political will from Senate leadership and Lula-aligned majority), resignation under external pressure (US Magnitsky sanctions, visa revocation), health, or a leave of absence/temporary removal. The Polymarket price is the primary anchor; news on impeachment petitions, US sanction escalation, and Brazilian political shifts after the 2026 election cycle are the key drivers.

2. Research Parallel tool calls

tool	status	time	items	summary
polymarket_direct	OK	0.5s	1	## This Market's Polymarket Data Alexandre de Moraes out as Brazil Supreme Court Justice? - Current price (probability): 27.00% - 7-day price change: +3.00% - 30-day price change: +18.00% - Total volume: $50,396 (USD notional) - Price range: 5.50% - 28.50% - Data points: 90 days
polymarket_related	OK	1.8s	2	Scanned 100 active Polymarket markets, kept 2 matches. keyword 'Moraes': 0 markets \| keyword 'Brazil Supreme Court': 0 markets \| keyword 'Bolsonaro': 1 markets \| keyword 'Lula': 1 markets
kalshi_related	OK	1.6s	1	1 related markets / summaries. keyword 'Moraes': no matches \| keyword 'Brazil': ok
article_search	OK	0.6s	30	Fetched 30 unique articles across 4 queries (lookback=60d). 'Alexandre de Moraes impeachment Senate': 10 articles \| 'Moraes Magnitsky sanctions United States': 10 articles \| 'Alexandre de Moraes resignation STF': 10 articles \| 'Brazil Supreme Court Moraes Alcolumbre impeachment request': 10 articles
claude_news	OK	27.3s	10	Based on the latest research (last 2-3 months, through Sept 2026): - New crisis erupted early Sept 2026: Fellow STF justice André Mendonça lifted secrecy on messages between Moraes and jailed ex-banker Daniel Vorcaro (Banco Master scandal), triggering a Senate uproar and a wave of new impeachme
gdelt_news	FAILED	240.0s	0	timeout after 240.0s
wikipedia	OK	0.1s	3	Fetched 3 Wikipedia entries (1 missing pages).

3. Evidence Brief Sonnet 5 · 7065 chars

# Current state Moraes remains a sitting STF justice; no resignation, removal, leave of absence, or health issue has been confirmed. The resolution mechanism requires an actual cessation of his justiceship (or announced resignation/removal) — not merely impeachment requests, sanctions talk, or political calls for his ouster, all of which remain unresolved political pressure as of Sept 2026. # Timeline of key events - 2025-07: US State Dept imposes entry ban on Moraes + other STF justices; Treasury later imposes Magnitsky Act sanctions (confirmed, Wikipedia/prior reporting). - 2025-12-12: OFAC removes Moraes, his wife, and Lex Institute from Magnitsky list amid US-Brazil tariff/trade thaw (confirmed, Agência Brasil). - 2026 (undated, recent): FT reports Trump administration discussing re-imposing Magnitsky sanctions on Moraes; no final decision (reported). - 2026-08-04: US revokes visa of Brazilian ambassador nominee amid diplomatic friction (confirmed, CNN) — tangential but shows ongoing US-Brazil tension. - 2026-09-01: Senate President Alcolumbre confirms 109 total impeachment requests against STF ministers pending, 66 targeting Moraes (confirmed, Senado notícias). - Early Sept 2026: Justice André Mendonça lifts secrecy on Moraes-Vorcaro (Banco Master scandal) messages, triggering new crisis and fresh impeachment requests; multiple senators (Vieira, Viana, Cleitinho, Damares, Amin, Flávio Bolsonaro, Izalci Lucas, Heinze, Malta) publicly call for Moraes's removal or resignation (reported, CNN Brasil/apublica.org). - Sept 2026: Folha de S.Paulo and O Estado de S. Paulo editorials call for Moraes's resignation (reported). - Sept 2026: Alcolumbre allies signal he will NOT advance impeachment requests, preferring to leave the matter to the STF itself; Senator Carlos Viana threatens to seek Alcolumbre's own removal over inaction (reported, CNN Brasil). # Event Will Alexandre de Moraes cease to be a Brazil Supreme Federal Court justice (resignation, removal, or announcement thereof) between market creation and Dec 31, 2026? # Outcomes to forecast Yes / No # Kalshi market anchor No kalshi_direct price was returned in this research pass (tool not populated); only a tangentially related Kalshi market (Renan Santos presidential advance, 2%) was found — not a useful proxy. Treat Kalshi price as unknown/gap; use Polymarket (27% YES, +18pp in 30 days, +3pp in 7 days, $50k volume) as the best available cross-market signal, acknowledging it may run hotter than Kalshi consensus. # Sub-question answers 1. **Polymarket trend** — Currently 27% YES, up sharply from a 90-day low of 5.5% to a high of 28.5%; +18pp over 30 days reflects the Sept Vorcaro/Mendonça crisis. [polymarket_direct] 2. **Alcolumbre/Senate math** — 66 of 109 pending impeachment requests target Moraes; Alcolumbre's allies say he intends to leave the matter to the STF rather than advance proceedings, despite louder public calls from several senators. No formal floor vote or committee advancement reported. [Senado, CNN Brasil] 3. **US sanctions** — Magnitsky sanctions were lifted Dec 2025 amid US-Brazil trade thaw; FT reports re-imposition is "discussed" but undecided. No evidence sanctions are directly pressuring Moraes toward resignation or the STF/government toward removing him. [Agência Brasil, FT via Rio Times] 4. **Resignation/health signals** — No confirmed reports of Moraes considering resignation, taking leave, or having health issues; "afastamento" calls originate from rival justice Mendonça and senators, not from Moraes himself. [claude_news synthesis] 5. **Historical base rate** — Not directly answered in research; general knowledge: STF justices almost never leave before mandatory retirement (age 75) except by death or rare resignation (e.g., Joaquim Barbosa, Marco Aurélio); no STF justice has ever been impeached/removed via impeachment. Research is silent on precise statistics. 6. **2026 election effect** — New Congress elected Oct 2026 doesn't take office until Feb 2027, meaning any impeachment-vote math shift from the election falls outside the market's Dec 31, 2026 window; current Senate (with Alcolumbre resisting action) governs the relevant period. Opposition is expected to use the issue as a campaign theme, but this is unlikely to translate into actual removal before year-end. [CNN Brasil, inferred] # Key facts (high-confidence, factual) 1. [Senado] 66 of 109 total STF impeachment requests target Moraes as of Sept 2026. 2. [Agência Brasil] Magnitsky sanctions on Moraes lifted Dec 12, 2025. 3. [CNN Brasil] Alcolumbre allies indicate he will not advance impeachment proceedings against Moraes. 4. [claude_news/apublica] Sept 2026 Vorcaro-messages disclosure by Justice Mendonça triggered acute inter-court and political crisis, intensifying resignation calls. 5. [Polymarket] YES price rose from ~5.5% to 27% over 90 days, tracking this crisis. # Cross-market signals - Kalshi related: only a loosely related presidential-advance market (2%, no signal for Moraes). - Polymarket: 27% YES, rising sharply (+18pp/30d), moderate volume ($50k) — market pricing meaningfully elevated but still under 50%. - Sportsbook implied: N/A (not applicable to this event type). # Analyst opinions and speculation - CNN Brasil: Alcolumbre unlikely to act short-term given personal closeness to Moraes and Lula; expects opposition to weaponize issue through October elections without near-term institutional action. - Editorial boards (Folha, Estadão): argue Moraes should resign to defend himself legally — normative opinion, not a prediction of actual departure. - No credible analyst source predicts imminent removal/resignation within 2026. # Directional lean per outcome - **Yes**: Rising impeachment request count, high-profile Vorcaro scandal, editorial pressure, multiple senators calling for removal, renewed sanctions discussion — momentum is building, reflected in Polymarket's rise to 27%. - **No**: Alcolumbria (key gatekeeper) not advancing any impeachment process; no formal vote scheduled; historical precedent of zero STF impeachments ever; new Congress with different composition doesn't seat until Feb 2027 (after resolution window); no confirmed resignation intent from Moraes; sanctions currently lifted, not active. # Gaps / unknowns - No Kalshi direct price captured this pass — true anchor unknown. - No hard historical base-rate data on STF departures/impeachments retrieved. - Unclear whether Mendonça-Moraes dispute could escalate to a formal STF internal removal mechanism (distinct from Senate impeachment). - Outcome of any US sanctions re-imposition decision unresolved. # Calibration anchors - Polymarket YES 27% (rising) — closest available cross-market anchor given missing Kalshi data. - Historical precedent: no STF justice has ever been removed via impeachment; departures before age-75 retirement are rare and almost always voluntary/health-related — suggests structural base rate for "Yes" is low, tempering the elevated market pricing driven by acute but unresolved political crisis.

4. Forecasters Fable 5.1 + GPT-5.6 Sol · in parallel

claude-fable-5-1

52% conf

Yes	14%
No	86%

No Kalshi direct price was available; Polymarket sits at 27% YES after a sharp rise driven by the Sept 2026 Vorcaro/Mendonça disclosure and editorials from Folha and Estadão calling for resignation. However, the key institutional gatekeeper (Senate President Alcolumbre) is signaling he will not advance any of the 66 pending impeachment requests, no STF justice has ever been removed via impeachment, and the new Congress does not seat until Feb 2027 — after the resolution window. Moraes has shown no sign of resigning and has weathered intense pressure before (including US Magnitsky sanctions, since lifted), so the ~3.5-month window makes actual cessation unlikely. I discount the Polymarket price for longshot bias and a hot news cycle, landing at ~14% YES while leaving meaningful room for a scandal-driven surprise.

gpt-5.6-sol

72% conf

Yes	18%
No	82%

Polymarket’s 27% YES is the best available anchor, but its sharp crisis-driven rise and moderate volume may overstate the likelihood of actual departure. The key Senate gatekeeper, Alcolumbre, reportedly will not advance impeachment despite 66 pending requests targeting Moraes, and no STF justice has ever been removed through impeachment. Moraes has shown no confirmed resignation, leave, or health signals, while possible renewed US sanctions remain speculative and lack a direct removal mechanism. Because the newly elected Congress will not take office until after the deadline, the institutional path to a 2026 exit remains narrow despite intense political and editorial pressure.

5. Devil's Advocate Sonnet 5 · red-team critique

Both forecasts converge closely (14% vs 18%) and discount Polymarket's 27% for similar reasons, but neither explores why Polymarket might actually be *more* informative than assumed — e.g., the brief notes the +18pp move happened specifically around the Vorcaro/Mendonça disclosure, a genuinely new institutional rupture (an STF justice publicly feuding with Moraes), which is qualitatively different from prior "longshot" pressure episodes like sanctions; this could argue for less discounting, not more.

Neither forecast seriously engages the "Gaps/unknowns" item that the Mendonça-Moraes dispute could escalate via an *internal STF mechanism* distinct from Senate impeachment — both rationales focus almost exclusively on the Alcolumbre/Senate pathway as if it's the only route to "Yes," potentially underweighting an alternative resolution channel the brief explicitly flags as unresolved.

Both forecasts treat "no STF justice has ever been removed via impeachment" as strong evidence for No, but this base rate is explicitly caveated in the brief as "general knowledge" with "no hard historical base-rate data retrieved" — leaning heavily on an unverified reference class is a reference-class risk neither forecaster flags as a limitation.

Neither forecast addresses voluntary resignation as a distinct (and arguably more plausible near-term) pathway separate from impeachment — editorial boards explicitly called for resignation, and health/personal-exit scenarios (cf. Joaquim Barbosa precedent) are barely weighted despite being flagged as the more common historical mode of early STF departure.

Both forecasts land in a narrow 14-18% band without much daylight between them despite F2 claiming much higher confidence (0.72 vs 0.52) — the confidence scores are inconsistent given nearly identical rationales and probabilities, and neither justifies why one should be so much more confident than the other in essentially the same analysis.

Neither forecast considers the compounding/interaction effect of multiple simultaneous pressure vectors (Vorcaro scandal + possible renewed Magnitsky sanctions + Senate friction + judicial infighting) — treating each pressure source independently as "insufficient alone" may understate tail risk from a multi-front crisis converging within the ~4-month window before close.

6. Aggregator Fable 5.1 · final calibrated forecast

17% (62% confidence)

Yes: 17% No: 83%

No Kalshi price exists, so Polymarket's 27% YES (up sharply on the Vorcaro/Mendonça disclosure) is the only market anchor, and thin volume plus a hot news cycle argue for discounting it. The sub-question answers uniformly point to No: Alcolumbre is refusing to advance any of the 66 impeachment requests, no STF justice has ever been removed by impeachment, the newly elected Congress does not seat until after the resolution window, and there are no resignation or health signals from Moraes himself, who has historically responded to pressure (including Magnitsky sanctions) by digging in. The critique is right that an internal STF rupture and a possible multi-front crisis (renewed US sanctions, Senate friction, editorial pressure) create genuine tail risk for a negotiated exit or resignation, so I keep meaningful mass on Yes rather than collapsing to the structural base rate. Netting these, I land at 17% YES, between the two forecasts and well below the market.

Pipeline Timing

Total pipeline time: 327.4s

Per-tool research timings shown in the Research section above.