Tools chosen: polymarket_direct wikipedia claude_news gdelt_news polymarket_related kalshi_related code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a structural/base-rate question: whether United Russia takes the party-list plurality in all ~85-89 federal subjects in 2026. The key evidence is historical — how many regions UR lost on the party list in 2021, 2016, 2011 — plus whether current conditions (annexed regions included, wartime mobilization of vote, KPRF/LDPR strength, electoral engineering, e-voting) make regional losses more or less likely. Market price on Polymarket is the primary anchor, with cross-venue and news checks.

# Current state The 2026 Russian State Duma election is scheduled for Sept 18–20, 2026 (market closes Sept 20). As of the latest news (Aug 2026), the campaign is underway with the Kremlin tightening controls on anti-war candidates; the vote has not yet occurred, so this remains a forward-looking structural/historical-base-rate question, not a live-results question. # Timeline of key events - 2011-12-04: UR wins nationally (49.32%) but loses party-list plurality in ~12 of 83 regions — weakest UR cycle (confirmed, Wikipedia/code_execution). - 2016-09-18: UR wins party-list plurality in every region — clean sweep (confirmed, 4freerussia via claude_news). - 2021-09-17/19: UR loses plurality in 4 regions to KPRF — Yakutia, Khabarovsk Krai, Nenets AO, plus a 4th (sources disagree: Mari El per 4freerussia/New Left Review vs. Komi/Ulyanovsk per Meduza) (confirmed core facts, disputed 4th region). - 2022: Russia annexes 4 Ukrainian regions (DPR, LPR, Zaporizhia, Kherson); these will report federal party-list results for the first time in 2026 (confirmed, Wikipedia/Izvestia). - 2024: REV pilots boost pro-government results in only 2 of 7 tested cases; inconsistent performance (reported, Russian Election Monitor). - 2026 (spring, exact date unclear): Internal UR campaign memo warns activists to prepare for voter anger over prices, internet controls, migration (reported, GlobalSecurity.org). - 2026-07-13: Anti-war politician Boris Nadezhdin briefly detained (confirmed, Moscow Times/Reuters wires). - 2026-07-17: Putin critic convicted, barred from campaigning (reported, Baltimore Sun). - 2026-08-11: Russia effectively bans "voting against the war" framing (reported, Guardian). - 2026-08-18: Court rejects anti-war party's appeal over election ban (reported, GlobalSecurity/RFE-RL). - No reports of postponement, cancellation, or delay as of latest coverage. # Event Will United Russia's party list win the plurality of votes in every single federal subject in the 2026 Duma election? # Outcomes to forecast Yes / No # Kalshi market anchor No kalshi_direct data was returned for this ticker in the research pulled. The only direct-market price available is **Polymarket: 60.5% YES** (7d: +3%, 30d: −19%, range 52.5–79.5% over 19 days, $179K volume) — treat this as the best available cross-platform anchor in place of a missing Kalshi quote; a companion Polymarket market "UR gains most seats" trades at 71.5% YES (a much easier bar than a clean sweep). # Sub-question answers 1. **Polymarket price/history** — 60.5% currently; down sharply from a 79.5% high 30 days ago, now recovering (+3% in 7d). [polymarket_direct] 2. **2021 losses** — UR lost plurality in 4 regions to KPRF (Yakutia, Khabarovsk Krai, Nenets AO, + Mari El or Komi/Ulyanovsk depending on source); 12 more regions were narrow UR wins. [claude_news/4freerussia/Meduza] 3. **2016/2011 base rate** — 2016: 0/85 regions lost (clean sweep); 2011: ~12/83 lost. Three-cycle base rate is highly bimodal (0, 2–4, 12). [wikipedia/code_execution] 4. **Weakest regions** — Historically Khabarovsk Krai, Nenets AO, Komi, Kirov, Yaroslavl (2021 vote shares 24–30%), largely Siberia/Far East/North. No specific 2023-25 update found; general narrative is rising economic/war fatigue risk nationally. [claude_news] 5. **Region count 2026** — Roughly 89 subjects will report (up from 85 in 2021), adding DPR, LPR, Zaporizhia, Kherson; these occupied territories are expected to report near-total UR/administrative control results, likely near-zero individual "failure risk," partially offsetting the higher region count. [wikipedia/izvestia] 6. **Institutional changes** — REV expansion has been scaled back, not expanded: available in 33–41 regions, capped near 10% of electorate per region, citing cybersecurity/reliability concerns; effect on sweep odds is ambiguous/modestly negative for opposition. Anti-war/opposition candidates (Nadezhdin, Yabloko) face intensified bans and prosecutions, reducing competitive risk to UR. [epde.org/claude_news/gdelt] 7. **Postponement risk** — No credible reporting found suggesting delay, cancellation, or indefinite result ambiguity; election is proceeding on schedule as of Aug 2026 news. [gdelt_news] # Key facts (high-confidence, factual) 1. [wikipedia] UR achieved a clean sweep in 2016; lost 4 regions in 2021; lost ~12 in 2011. 2. [wikipedia/izvestia] 2026 election adds 4 annexed Ukrainian regions to reporting subjects (~89 total). 3. [epde.org] REV capped/scaled back for 2026, not the feared nationwide rollout. 4. [gdelt/claude_news] Crackdown on anti-war candidates intensified through mid-2026. # Cross-market signals - Polymarket (this market): 60.5% YES, volatile (52.5–79.5% range), trending up recently but down 19pts over 30d. - Polymarket related: "UR gains most seats" 71.5% YES (much lower bar, consistent with high confidence in overall UR dominance but not necessarily a clean regional sweep); "KPRF gains most seats" 1.25% YES. - Kalshi related: no direct Duma-sweep market found; adjacent Russia/Putin markets show no election-delay signals. # Analyst opinions and speculation - Free Russia Foundation/IES Lublin: UR expected to retain supermajority, "outcome largely predetermined" via administrative control, but flag economic slowdown and voter anger as first real test since 2022 invasion. - Internal UR memo (reported) signals real anxiety about regional voter mood — a soft signal against a guaranteed clean sweep. # Directional lean per outcome - **Yes (clean sweep)**: Supported by 2016 precedent, intensified opposition suppression, capped/controlled REV, full administrative control, and newly annexed regions expected to vote near-unanimously for UR. - **No**: Supported by 2021 precedent (4 losses under similar authoritarian conditions), historically volatile regional performance in Far East/North/Siberia, base-rate models (2016+2021 pooled) implying only ~23-27% clean-sweep probability, and reported voter anger over economy/war fatigue. # Gaps / unknowns - No true Kalshi YES price was retrieved (tool gap) — Polymarket used as proxy anchor. - Exact identity of the 4th region lost by UR in 2021 is disputed across sources. - No granular 2023-25 regional polling for weak regions (Khabarovsk, Komi, etc.) was found. - Unclear how annexed-territory results will affect "separately reported" federal subject count/resolution. # Calibration anchors - Polymarket YES: 60.5% (primary available anchor). - Base-rate models: Poisson/binomial clean-sweep probability ranges ~1% (all 3 cycles) to ~23-27% (2016+2021 only), sensitive to inclusion of 2011 outlier. - Precedent: 1 of last 3 cycles (2016) was a clean sweep; 2 of 3 had losses (2011: 12 regions; 2021: 4 regions).

1. Both forecasters anchor heavily on a single volatile Polymarket price (52.5–79.5% range, $179K volume) rather than treating it as noisy/thin-market data; neither discusses how illiquid, low-volume prediction markets on niche geopolitical events can be poorly calibrated, especially with a 19-point 30-day swing suggesting the "true" probability is highly uncertain rather than converging. 2. Neither forecast seriously grapples with the base-rate math explicitly given in the brief: pooling 2016+2021 yields ~23-27% clean-sweep probability, yet both land at 52-63% Yes — a large deviation from the stated historical base rate that is justified only qualitatively (opposition suppression, REV) without quantifying how much weight "structural improvement since 2021" should actually carry against a documented 2-of-3 historical failure rate. 3. Both treat the 89-region denominator increase as roughly neutral (annexed territories offsetting), but neither addresses the disputed 4th 2021 loser region or the "no granular 2023-25 polling for weak regions" gap as a genuine source of irreducible uncertainty that should widen (not narrow) their confidence intervals rather than converge near the market price. 4. Forecast 1 explicitly moves *above* the Polymarket anchor (0.63 vs 0.605) citing KPRF cooptation and Smart Voting's defunct status, but doesn't address why the market itself, presumably aware of these same public facts, hasn't already priced them in — this is an assertion of information edge over the market without justification. 5. Neither forecast discusses the internal UR memo warning of "voter anger over prices, internet controls, migration" as anything beyond a minor offsetting factor, despite the brief flagging this as a "first real test since 2022 invasion" — a scenario where economic discontent causes a small, unpredictable cluster of regional losses (as happened in 2021) is underweighted as a tail risk given Russia's known 2025-26 economic strain (not detailed in brief but implied). 6. Both forecasts fail to explicitly discuss resolution/definitional risk: how the market resolves if a region reports anomalous, contested, or delayed results (e.g., occupied Ukrainian territories under wartime conditions), which could create ambiguity distinct from a clean binary "UR wins/loses" outcome.

55% (52% confidence)

Yes: 55% No: 45%

The only direct anchor is a thin, volatile Polymarket quote (60.5%, 52.5–79.5% range, 19-pt 30d drop), which deserves partial rather than full weight; the critique is right that both forecasters leaned on it while ignoring that pooled 2016+2021 base rates imply only ~25% for a clean sweep. Offsetting that, the structural case for Yes is real and largely one-directional since 2021: Smart Voting is defunct, KPRF (the party that took plurality in Yakutia, Khabarovsk and Nenets AO) has been further coopted, anti-war candidates are being banned/prosecuted, and the four annexed regions add subjects that will report near-unanimous administratively controlled results. Against that, only one of ~89 subjects needs to slip for No, the historically weak Far East/North regions (Khabarovsk, Komi, Nenets, Kirov) lack any 2023-25 polling, and the internal UR memo warning of voter anger over prices, migration and internet controls is a genuine tail-risk signal in Russia's first Duma test since 2022. I therefore settle modestly below the market anchor and roughly midway between the naive base rate and the structural-control case, at 0.55, reflecting wide irreducible uncertainty rather than convergence.

Total pipeline time: 237.5s