Luiz Inácio Lula da Silva (PT) receives more votes than Flávio Bolsonaro (PL) in the first round of Brazil's presidential election on October 4, 2026 (confirmed by Tribunal Superior Eleitoral or Reuters by October 5, 2026)
Pending
✦ AI-generated prediction
Published on 23. September 2026
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Predicted for 4. October 2026
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Based on: Historical Cycle
Datafolha (September 15-17, 2026): Lula 39%, Flávio Bolsonaro 31% in the first round — an 8-percentage-point lead. AS/COA tracker and BTG Pactual/Nexus confirm Lula's consistent first-round lead (runoff: Lula 46% vs. Bolsonaro 45% — much tighter). This prediction is consistent with but strictly separate from open predictions (Lula >42% and Bolsonaro >35%): both can coexist without Lula necessarily leading. The 80-year-old Lula holds a structural advantage in the first round as incumbent with a broad coalition. Flávio Bolsonaro's runoff surge reflects right-consolidation but does not erode Lula's first-round lead.
Data basis for this prediction
- Datafolha (15.–17. September 2026): Lula 39 %, Flávio Bolsonaro 31 % (1. Wahlgang); Stichwahl Lula 46 %, Bolsonaro 44 %
- AS/COA Poll Tracker September 2026: Lula führt konsistent im 1. Wahlgang aller Umfragen
- Al Jazeera / BTG Pactual–Nexus (22. September 2026): Stichwahl Lula 46 %, Bolsonaro 45 % – Rennen extrem eng
Verdict: Pending
This prediction is still open. It will be evaluated automatically against real-world sources after its due date.
🏛️ Politics
✦ AI
Polymarket sees 66% probability for a Democratic Senate majority (as of September 23, 2026); Metaculus sees 59% for a Republican majority — both markets show a tight but slightly pro-Democratic race. Key swing-state races: Texas (Talarico D vs. Paxton R: ~62% Democrat), Ohio (Brown D vs. Husted R: ~63% Democrat), Maine (Jackson D vs. Collins R: ~74% Democrat), Iowa (50/50). Historically, the opposition benefits from anti-incumbent sentiment in midterms: Trump's second term, the US-Iran crisis, and persistent core inflation above 3% (US Core PCE ≥3.1% per open Cassandra prediction) should provide mobilization tailwind. Caveat: Structurally difficult 2026 Senate map (Democrats defending more seats) and gerrymandering effects could flip individual seats. The separate open House majority prediction (Democrats 93% per Polymarket) is independent of this.
🏛️ Politics
✦ AI
The new Swedish Riksdag constitutes on September 28, with formal parliamentary opening on September 29. Speaker Andreas Norlén tasked Andersson (Social Democrats) with government formation on September 18; the centre-left bloc holds 176 of 349 seats (razor-thin majority). A vote by September 29–30 requires coalition talks to conclude in under two weeks — unlikely given the Left Party/Centre Party standoff (Left insists on ministerial roles; Centre categorically refuses Left Party participation). Base case: vote in the October 1–7 window. The low probability reflects this structural bottleneck.
🏛️ Politics
✦ AI
In Latvia's October 3, 2026 Saeima election, September polls place Apvienotais saraksts (LZP/LRA/LP) at 22.8%—ahead of SV (12.7%), LPV (12.6%), Progresīvie (12.1%), Nacionālā Apvienība (9.4%), and Jaunā Vienotība (8.1%). The lead over second place is 10.1 percentage points. The current ruling coalition is projected at only ~29% of seats under current trends, losing its majority. Polymarket operates an active market for the election winner. Even allowing for typical ±4pp polling error, Apvienotais saraksts would retain first place; however, the >20.0% threshold could be narrowly missed if the party underperforms by ~3pp (occurring in ~20% of cases), reducing the probability slightly below the first-place probability alone.