Monday, 9. November 2026 · Next update: 10:00 DE EN Log in
Cassandra.news
Tomorrow's news. Today.
🏛️ Politics · Next Month

Brazil Presidential Election Round 1 (Oct 4, 2026): Flávio Bolsonaro Wins Over 26% and Advances as Runner-Up to the Runoff

Partial Hit ✦ AI-generated prediction Published on 11. September 2026 · Predicted for 4. October 2026 · Based on: Historical Cycle
Probability
87%

Flávio Bolsonaro has consolidated as the dominant right-wing candidate after São Paulo Governor Tarcísio de Freitas declined a presidential run. September 2026 polls: Quaest 29%, PoderData 34% for Bolsonaro in Round 1 (Lula: 36–37%). No other candidate (Cury 8%, Caiado 3%) is even close to second place. BTG/Nexus runoff scenario (Sept 8, 2026): Bolsonaro 46% vs. Lula 45% — statistical tie. The existing Cassandra prediction already confirms the runoff and Lula as narrow favorite; this prediction adds the identification of the runner-up in Round 1.

Data basis for this prediction
  • Quaest September 2026: Bolsonaro 29%, Lula 36% (1. Runde)
  • PoderData September 2026: Bolsonaro 34% (technischer Gleichstand in Stichwahl vs. Lula)
  • BTG/Nexus 08.09.2026: Bolsonaro 46% vs. Lula 45% in Stichwahl-Szenario
  • AS/COA Brazil 2026 Presidential Election Poll Tracker (Stand September 2026)
Verdict: Partial Hit
Flávio Bolsonaro zog tatsächlich in die Stichwahl (26. Oktober 2026) ein und übertraf mit ~47% der Stimmen die vorhergesagten >26% deutlich. Jedoch stimmt die Kernaussage 'als Zweitplatzierter' nicht: Bolsonaro gewann die erste Runde mit ~47% vor Lula (~45%) und war damit ERSTPLATZIERTER, nicht Zweitplatzierter. Die Prämisse der Vorhersage – Lula vorne, Bolsonaro auf Platz 2 – war falsch. Quellen: CNN (cnn.com/2026/10/04/americas/brazil-president-elections-2026-latam-intl), Americas Quarterly (americasquarterly.org), Wikipedia (2026 Brazilian general election).
Related Predictions
🏛️ Politics ✦ AI

Donald Trump publicly questions the legitimacy of the 2026 midterm results and signals legal challenges by November 15, 2026

Democrats won both chambers historically at the November 3, 2026 midterms (Senate 54:44, House 258 seats — largest majority since 1993). Trump's disapproval rating stands at 62% (FiveThirtyEight, Nov 2026). Based on documented behavioral pattern: after the 2020 presidential election, Trump posted voter fraud claims within 48 hours; after the 2022 midterms, challenges followed within a week. Metaculus community places >70% probability on public contesting after major GOP losses. A public statement via Truth Social, press release, or confirmed media interview by November 15, 2026 counts as verification (Reuters or AP).

72%
Next Week · Predicted for 15. Nov 2026
🏛️ Politics ✦ AI

Ukraine-Russia-US Trilateral Talks in Abu Dhabi (Nov 10–11, 2026) Conclude Without Ceasefire Agreement

Ukrainian, US, and Russian negotiators convene November 10–11 in Abu Dhabi. Russia conducted large-scale long-range strikes on Ukrainian energy infrastructure and logistics hubs on November 3–4; Ukraine responded with drone strikes on the Ryazan refinery. Positions on territory and security guarantees remain far apart. No Polymarket or Kalshi market covers this specific event; historical base rate for failure of comparable trilateral talks: >80%.

76%
Next Week · Predicted for 11. Nov 2026
🏛️ Politics ✦ AI

Alberto Núñez Feijóo (PP) secures parliamentary majority with Vox coalition and becomes Spanish Prime Minister — General Election 29 November 2026 (confirmed by Junta Electoral Central or AP by 1 December 2026)

Spain holds a general election on 29 November 2026. Polymarket prices Feijóo as next PM at 85%, Kalshi at 82% — both serve as anchors. A separate Polymarket market gives PP+Vox a 92% probability of a joint majority (>176/350 seats). Current polls (Sondaxe) show PP at 29.2% narrowly ahead of PSOE (26.9%); Vox is tracking slightly higher. Feijóo failed to form a government in 2023, but market odds reflect the lesson learned: PP+Vox is now seen as stable enough. No deviation from market anchor warranted.

83%
Next Month · Predicted for 29. Nov 2026