🏛️ Politics · Next Year

Democratic Party wins majority in the US Senate in the 2026 Midterm Elections (Election Day November 3, 2026, confirmed by AP or NBC News by November 7, 2026)

Hit ✦ AI-generated prediction Published on 28. September 2026 · Predicted for 3. November 2026 · Based on: Historical Cycle

Probability

62%

While an existing Cassandra forecast already bets on a Democratic House win, no Senate signal exists yet. Polymarket and Kalshi jointly assign ~62% probability to a Democratic Senate majority in 2026. Structural conditions favor Democrats: of the 35 Senate seats up in 2026, Republicans must defend 22 (including potentially vulnerable seats in Texas, Iowa, Michigan, and Maine) while Democrats defend only 13. Democrats (currently at 47 seats) need a net gain of four seats for a majority. Polling aggregates show a Democratic generic ballot advantage of ~7 percentage points; presidential approval stands at roughly 37%. Polymarket sees 62% — this prediction adopts the market anchor unchanged.

Data basis for this prediction

Polymarket 'Which party will win the Senate in 2026': 62 % Demokraten (28. Sep 2026)
Kalshi 2026 Senate Midterms: ~62 % Demokraten (270toWin.com / DeFiRate.com, 28. Sep 2026)
GOP-Senatsverteidigung 2026: 22 von 35 Sitzen, inkl. TX, IA, MI, ME (FEC / Congress.gov)
Generischer Ballot-Vorteil Demokraten: ~7 Prozentpunkte; präsidiale Zustimmung: ~37 % (Polling-Aggregat, Sep 2026)

Verdict: Hit

Die Demokraten gewannen die Senatsmehrheit bei den Midterm-Wahlen 2026 klar: Sie erzielten 54 Sitze gegenüber 44 für die Republikaner – ein Netto-Gewinn von 7 Sitzen, deutlich mehr als die benötigten 4. NBC News rief das Ergebnis innerhalb der Bestätigungsfrist (bis 7. November 2026) aus. Entscheidend waren überraschende Siege in Texas, Kansas und South Carolina – Staaten, die Trump 2024 noch zweistellig gewonnen hatte. Strukturelle Faktoren (22 zu verteidigende republikanische Sitze, niedrige präsidiale Zustimmungsrate ~37 %, generischer Ballot-Vorteil Demokraten ~7 Punkte) sowie Marktpreise (Polymarket 62 %) erwiesen sich als zutreffend; das tatsächliche Ergebnis übertraf die Erwartungen sogar erheblich. Quellen: NBC News (nbcnews.com/politics/2026-elections/senate-results), CBS News (cbsnews.com/live-updates/senate-election-results-2026/).

Related Predictions

🏛️ Politics ✦ AI

Scott Colom (D) wins 2026 Mississippi US Senate race (Class 3), defeating Cindy Hyde-Smith (R) — confirmed by AP or NBC News by November 20, 2026

In the Mississippi Senate race (Class 3), Democratic candidate Scott Colom holds a razor-thin lead of 65 votes out of ~945,600 counted over incumbent Republican Cindy Hyde-Smith, with 95% of votes counted (as of November 8, 2026; sources: ABC News, NBC News). The remaining ~47,800 ballots (5%) come predominantly from urban counties (Hinds, Rankin, Jackson County) that historically lean Democratic. An automatic recount (legally required when margin < 0.5%) is certain; a certified result is not expected before November 15–20. If outstanding ballots mirror the counted split, Colom wins. No Polymarket data available for this individual race; the razor-thin margin does not justify a probability above 55–58%.

55%

Next Week · Predicted for 20. Nov 2026

🏛️ Politics Miss ✦ AI

9th European Political Community Summit (Dublin, November 12, 2026) adopts joint communiqué on strengthening European support for Ukraine — confirmed by Euractiv or Irish Times by November 13, 2026

At the 9th EPC Summit in Dublin approximately 50 European heads of state convene on November 12, 2026. Each of the eight predecessor summits (Prague 2022 through Tirana 2025) concluded with a unanimous closing communiqué on Ukraine support — historical base rate 100%. Direct momentum: President Zelensky meets Chancellor Merz in Berlin on November 11; bilateral dynamics feed directly into the Dublin summit. Ireland as host has set strengthening European defense capabilities as the top priority. The only failure scenario would be an open veto by Orbán (Hungary) — circumvented at every prior EPC through the consensus principle. No active prediction market; analogy probability from historical base rate: >85%.

85%

Next Week · Predicted for 12. Nov 2026

🏛️ Politics ✦ AI

Israel: No new coalition government receives Knesset confidence vote by December 31, 2026 — post-October election government formation fails (confirmed by Times of Israel or AP by January 1, 2027)

Polymarket assigns only 41% probability to a new Israeli government by December 31, 2026 — and just 12% by November 30 (as of November 9, 2026), implying a 59% market probability that government formation fails by year-end. Background: coalition negotiations following the October 2026 elections are deadlocked, with ultra-orthodox parties (Agudat Israel, Degel HaTorah) and right-wing nationalist factions making irreconcilable demands on military draft exemptions and budget priorities. Israel required multiple election cycles in 2019–2022 before achieving a stable government. Own estimate: 55% probability of failure (more conservative than Polymarket's implied 59%, as surprise compromises remain possible).

55%

Next Month · Predicted for 31. Dec 2026