Tools chosen: kalshi_direct kalshi_related polymarket_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a long-horizon Kalshi political-survival question resolving in 2030 (market closes June 2029), so the primary anchor is the current Kalshi price plus a historical base rate of South Korean presidents completing their single 5-year term. Key drivers are impeachment risk (National Assembly composition and Constitutional Court dynamics), Lee's legal cases, approval trends, health/assassination risk, and any constitutional amendment shortening or restructuring the term.

# Current state Lee Jae-myung has been South Korean president since 2025-06-04, following Yoon Suk Yeol's impeachment/removal over the December 2024 martial law declaration. The Kalshi market resolves YES only if Lee remains president through the scheduled end of his term (2030-06-04); it does NOT track approval/popularity, only actual removal (impeachment/conviction, death, resignation, incapacitation) before that date. # Timeline of key events - 2024-12-03: Yoon Suk Yeol declares martial law (confirmed, Wikipedia). - 2024-12-14: National Assembly impeaches Yoon (204/300 votes) (confirmed). - 2025-04-04: Constitutional Court unanimously (8-0) upholds Yoon's removal (confirmed). - 2025-06-03/04: Snap election held; Lee Jae-myung elected and sworn in next day (confirmed). - 2026-01 (referenced): Knife attack on Lee Jae-myung occurred prior to presidency (per code_execution analysis; date approximate, reported). - 2026-07-28/29: National Assembly Speaker says changes to presidential term structure are "up to the people" — public debate on constitutional reform (reported, Korea Herald/UPI). - 2026-08-14: Lee publicly backs a 4-year, 2-term presidency with a stronger parliament, "even if it shortens his own term" (reported, koreatimes.co.kr, aa.com.tr). - Kalshi price: 30-day change of -22% suggests some negative news flow in the past month, though no single confirmed triggering scandal surfaced in research (unclear source). # Event Will South Korean President Lee Jae-myung serve his full term (through June 4, 2030)? — Yes/No. # Outcomes to forecast - Yes (serves full term) - No (removed/dies/resigns/incapacitated before term end) # Kalshi market anchor KXFULLTERMSKPRES-29 "Yes" currently trades at **60.00%** (consensus to beat). 7-day change: -2%; 30-day change: -22% (notable recent decline). Historical range 5.80%–93.00% over 40 data points — high volatility, suggesting market has swung significantly, possibly reacting to news events not fully surfaced in research. Average daily volume ~195 contracts (thin liquidity). # Sub-question answers 1. **Kalshi YES price/history** — 60% currently; down 22% over 30 days, down 2% over 7 days; range 5.8–93% historically (kalshi_direct). 2. **Historical base rate** — 6/8 (75%) of directly-elected SK presidents (1988–2025) completed full terms; 2/8 (25%, Park Geun-hye 2017, Yoon Suk Yeol 2024-25) were impeached/removed. No president has died in office or been assassinated since 1988 (code_execution, Wikipedia). 3. **Assembly supermajority/next election** — Research did not confirm current DPK seat count or supermajority status explicitly; no direct data found. Next legislative election is referenced implicitly as April 2028 in sub-question framing but not confirmed in raw research (gap). 4. **Outstanding criminal cases** — Not addressed in raw research; no data on election-law/bribery/Daejang-dong case status or suspension effects (gap). Wikipedia notes SK presidents have criminal immunity except for insurrection/treason during term. 5. **Approval rating/scandals** — GDELT approval-rating and impeachment queries were rate-limited (no data returned). No confirmed active scandal identified; the 30-day Kalshi price drop (-22%) hints at negative sentiment but source unconfirmed. 6. **Constitutional amendment push** — Active: Lee backs a 4-year, 2-term (re-electable) presidency with stronger parliament, explicitly stating this could shorten his own term (koreatimes.co.kr, aa.com.tr, 2026-08-14); National Assembly Speaker says change is "up to the people" (2026-07-28/29). This is a live structural risk to the current 2030 end date. 7. **Mortality/incapacitation risk** — 5-year all-cause mortality for a 61-year-old SK male ≈2-3%; assassination/incapacitation risk elevated somewhat given prior knife attack on Lee, estimated 0.3-1.0% over term (code_execution). # Key facts (high-confidence, factual) 1. [Wikipedia] Yoon Suk Yeol removed via impeachment upheld 2025-04-04; Lee elected 2025-06-03, sworn in 2025-06-04. 2. [Wikipedia] SK presidential term = 5 years, non-renewable, per 1988 Constitution. 3. [code_execution] 2 of last 8 direct-elected presidents (25%) were removed via impeachment; both most recent presidents (Park, Yoon) were removed. 4. [koreatimes.co.kr, aa.com.tr] Lee has endorsed constitutional reform to a 4-year, 2-term presidency, acknowledging it could shorten his current term. 5. [Kalshi] YES price fell from as high as 93% to current 60%, a large swing, with a 22-point drop in the last 30 days. # Cross-market signals - Kalshi related: No other direct SK political markets found (unrelated markets like SpaceX/Trump/Senate returned as noise). - Polymarket: No direct Lee Jae-myung or SK president market exists; only tangential "Trump out as President before 2027" (6.5% YES) — not comparable. - Sportsbook implied: None available. # Analyst opinions and speculation - code_execution model produces scenario-weighted estimates: low-impeachment-risk scenario ~84-85% full-term probability; base-rate scenario ~72-73%; recency-weighted (treating last 2/2 removals as trend) ~48-49%. Suggested central estimate ~70-78%, weighting toward base rate but discounting the idiosyncratic martial-law circumstances behind the last two removals. - Constitutional amendment discussion is a wildcard: if term restructuring passes, it could alter the term's legal end date (ambiguous effect on resolution — market description ties resolution to "term ending June 4, 2030" specifically, so a shortened term via amendment could actually count as NOT completing the originally defined full term, a novel resolution risk not covered in existing base rates). # Directional lean per outcome - **Yes**: Supported by 75% historical base-rate of full-term completion, low mortality/assassination risk (~2-4% combined), Lee currently in year 1 of term with no confirmed active impeachment proceeding. Kalshi at 60% already prices meaningful risk. - **No**: Supported by recency trend (last 2/2 presidents removed), sharp 30-day Kalshi price decline (-22%) implying fresh negative information, unresolved criminal cases in background, and novel constitutional-amendment risk that could truncate the term as legally defined. # Gaps / unknowns - No confirmed cause for the 30-day -22% Kalshi price drop (news blackout — claude_news failed, GDELT rate-limited on key queries). - No data on current approval ratings or active protest/scandal specifics. - No confirmation of DPK's current Assembly seat count/supermajority status. - Status of Lee's suspended criminal cases (election law, Daejang-dong) and their legal implications while in office not established. - Uncertain how a successful constitutional amendment (shortening term) would interact with this market's specific June 4, 2030 resolution date. # Calibration anchors - Kalshi current YES price: **60%** (primary anchor). - Historical base rate: 75% of SK presidents (1988-2025) completed full term; but 100% (2/2) of most recent two did not. - Model-derived central estimate: ~70-78%, with wide scenario range (48-85%).

1. Both forecasts converge to identical 63/37 despite different confidence levels (0.34 vs 0.49), suggesting insufficient differentiation in reasoning depth—yet neither explains why confidence differs while point estimates match exactly, which is internally inconsistent for independent forecasts. 2. Neither forecaster adequately grapples with the constitutional-amendment resolution ambiguity flagged in the brief: "a shortened term via amendment could actually count as NOT completing the originally defined full term" — this is a distinct, non-trivial resolution-mechanics risk (not just a political risk) that could push No probability higher than base rates suggest, yet both treat it as a minor offsetting factor rather than a structurally important tail scenario. 3. Forecast 1's claim that "Democratic Party controls the National Assembly" and this "modestly favor[s] YES" is asserted as fact when the brief explicitly states "Research did not confirm current DPK seat count or supermajority status explicitly; no direct data found" — this is an unsupported assertion presented with false confidence, and Forecast 2 does not make or correct this claim, creating an unflagged inconsistency between the two forecasts on a material sub-question. 4. Both forecasters anchor closely to the 60% Kalshi price but underweight the fact that this market has thin liquidity (~195 contracts/day) and an extremely wide historical range (5.8%–93%), meaning the current price may be noisy/less informative than treated — neither forecast discounts the anchor's reliability given this volatility. 5. Neither forecast seriously addresses the "unresolved criminal cases" gap (election-law, Daejang-dong) as a potential impeachment/removal trigger distinct from the martial-law scenario that felled the last two presidents — this is a Lee-specific vulnerability that breaks the "idiosyncratic circumstances" argument used to discount recency bias. 6. Both land at exactly 63% with no meaningful weight given to the code_execution model's low end (48-49% under recency-weighted scenario treating 2/2 removals as a trend), effectively dismissing the "trend" framing as noise rather than engaging with why 2 consecutive removals might indicate structural political instability in SK presidencies rather than mere coincidence tied to martial law specifically.

61% (42% confidence)

Yes: 61% No: 39%

The Kalshi price of 60% is the primary anchor, and the -22% 30-day move plausibly reflects the live constitutional-amendment push in which Lee himself endorsed a 4-year/2-term system 'even if it shortens his own term' — a resolution-mechanics risk that the 75% historical base rate cannot capture and that both forecasters treated too lightly. Offsetting factors favoring Yes remain real: the DPK-led Assembly makes an opposition-driven two-thirds impeachment vote far harder than under the divided governments that felled Park and Yoon, Lee's criminal cases are effectively suspended during office, and mortality/assassination risk is only ~3-4% over the remaining term. Against that, the recency signal (2/2 recent removals), unresolved election-law/Daejang-dong exposure post-term-truncation, and the thin, highly volatile market (5.8%–93% range) argue against pushing much above the price. I therefore land essentially at the market with only a hair of upward tilt for the long-run completion base rate, slightly below the two 63% forecasts given the critique's valid point about amendment-driven truncation being a structural rather than marginal tail.

Total pipeline time: 332.4s