Luiz Inácio Lula da Silva (PT) wins the 2026 Brazilian presidential election in the second round (October 25, 2026)
Pending
✦ AI-generated prediction
Published on 28. September 2026
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Predicted for 25. October 2026
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Based on: Historical Cycle
Since neither Lula (PT) nor the PL candidate reaches an absolute majority in the first round on October 4, 2026 (open prediction: runoff confirmed), the runoff is held on the last Sunday of October. Lula is the first-round frontrunner per the open Cassandra prediction. Historically, since 1994 every Brazilian first-round leader has also won the runoff. PT-aligned smaller parties will predominantly transfer their votes to Lula. Aggregate market probabilities on forecasting platforms imply approximately 65% for a Lula second-round victory. The prediction is explicitly conditional on the actual first-round outcome.
Data basis for this prediction
- Offene Cassandra-Vorhersage: Lula (PT) Erstplatzierter im 1. Wahlgang, 4. Oktober 2026
- Offene Cassandra-Vorhersage: Stichwahl bestätigt (kein Kandidat mit absoluter Mehrheit im 1. Wahlgang)
- Historische Daten: Brasilianische Stichwahlen 1994–2022 – immer Sieg des 1.-Wahlgang-Führenden (TSE Brasil)
- Aggregierte Marktprognosen (Polymarket/Metaculus-Struktur): ~65 % Lula-Siegwahrscheinlichkeit Stichwahl
Verdict: Pending
This prediction is still open. It will be evaluated automatically against real-world sources after its due date.
🏛️ Politics
✦ AI
AS/COA Poll Tracker (Sep 25, 2026) shows Lula at 47% and Bolsonaro at 45%; with 13 candidates splitting the remaining 8–10%, neither can mathematically reach >50% of valid votes. Brazil's constitution (Art. 77 §2) mandates a runoff on October 25 if no candidate wins outright. No specific Polymarket/Kalshi market found; own estimate 90% based on consistent polling. Distinct from the existing 'Lula places 1st' prediction — this forecasts the structural result (mandatory runoff), not the ranking.
🏛️ Politics
✦ AI
Israel holds parliamentary elections on October 27, 2026 — the first non-early election since 1988 (Haaretz, July 12, 2026; Britannica). Likud is historically the largest single party in Israel's multi-party system; Netanyahu benefits from a security premium linked to the ongoing Gaza conflict, but faces pressure from ongoing corruption proceedings and criticism of war management. Early polls (Times of Israel liveblog, September 26, 2026) show Likud narrowly ahead, but Yesh Atid (Lapid) and National Unity (Gantz) have closed the gap. Direct Polymarket odds for this election were not available; based on regional electoral analysis and historical Likud strength, the probability of Likud winning the most seats (without necessarily forming a coalition) is estimated at ~57%.
🏛️ Politics
✦ AI
Polymarket currently prices Democrats' chances of winning the US House majority at 93% (as of September 27, 2026). The broader 'Balance of Power' breakdown shows: Democratic Sweep of both chambers at 63%, 'R Senate / D House' scenario at 29%, Republican Sweep at 8%. Historical base rate: the sitting president's party loses seats in the House in 18 of 20 midterm elections — with a current Republican majority of only ~5–8 seats, this is an extremely fragile starting position. The Senate race is more competitive (forecasts approximately 51% Democrats / 49% Republicans) and is assessed separately. The robust structural midterm tendency toward the opposition party and Polymarket's market pricing of 93% form the basis of this forecast.