Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news gdelt_news wikipedia code_execution

Sub-questions (Fermi decomposition)

Planner reasoning

This is a conditional personnel question: it requires (a) Karoline Leavitt actually departing the press secretary role and a permanent successor being named before Dec 31, 2026, and (b) that successor being Scott Jennings specifically. Base rates for a specific named individual in a multi-candidate 'Other'-heavy market are low, and Jennings is reportedly pursuing a Kentucky Senate run, which would make him unavailable. Primary anchor is the Polymarket price, supplemented by news on Leavitt's status and Jennings' plans.

# Current state Karoline Leavitt departed as White House Press Secretary in late August 2026 (confirmed via CNN, Wikipedia, multiple outlets). No successor has been formally announced by the White House as of the latest reporting (~Aug 27-28, 2026). Scott Jennings has emerged as a reported frontrunner with Chief of Staff Susie Wiles' informal backing, but no offer or decision has been made; Trump is reportedly "not in a rush." Market pricing (Polymarket 22.4%, Kalshi 21%) reflects this as a leading-but-unconfirmed candidacy, not a done deal. # Timeline of key events - 2025-02: Mitch McConnell announces Senate retirement; Jennings floated as potential KY Senate candidate but never enters race (reported). - 2026-05-01: Leavitt gives birth to second child (confirmed, cited as factor in resignation). - 2026-05-19: KY Senate GOP primary held; Andy Barr wins nomination over Daniel Cameron — Jennings not a candidate (confirmed, Wikipedia). - 2026-08-13: CNN reports Leavitt leaving press secretary role in late August, citing family reasons (confirmed). - 2026-08-14: Jennings does not deny press secretary speculation (reported, Barrett Media). - ~2026-08-16/17: Reports surface Trump also considering Fox News's Alexis McAdams (rumored, Independent). - 2026-08-23: Reports Jennings met privately with Susie Wiles (meeting requested by Jennings); sources say he has her backing but no decision made (reported, CNN/News-Tribune/Mediaite). Same day: Leavitt confirmed departed; reveals next role at MAGA Inc. (confirmed). - 2026-08-26/27: Multiple outlets ("Who will replace Karoline Leavitt?") continue listing candidates (Jennings, Anna Kelly, Stephen Miller); Leavitt says she is advising Trump on the pick (reported, Fox News). - As of 2026-08-28: No White House announcement of permanent successor (confirmed absence). # Event Will Scott Jennings be named the next (permanent, non-acting) White House Press Secretary replacing Karoline Leavitt, by Dec 31, 2026? # Outcomes to forecast - Yes (Jennings named permanent successor) - No (someone else named, or no successor named/role changed by deadline → resolves "Other" per rules, counted in No bucket for this Yes/No market) # Kalshi market anchor Kalshi ticker KXNEXTPRESSEC-29JAN21-SJEN: **current YES price 21%**, down sharply from recent highs (-25% over 7 days), up +11.2% over 30 days; range 0.6%–46%; heavy volume (~23,886 contracts/day avg). Polymarket's parallel market prices Jennings at **22.4%**, down -15.75% over 7 days but +4.4% over 30 days; range 8%–42.35%, volume $86k. Both venues converged near 21-22%, having pulled back from a peak (mid-40s%) — suggesting a fading-but-live frontrunner narrative. # Sub-question answers 1. **Polymarket price/trend** — 22.4% current; 7d -15.75%, 30d +4.4%; ranged 8%-42.35% over 16 days of data, indicating high volatility and a recent pullback from peak enthusiasm. [polymarket_direct] 2. **Is Leavitt leaving/departed?** — Confirmed departed late August 2026; cited family/childcare reasons; moving to Trump-aligned MAGA Inc. [CNN, Wikipedia, jpost] 3. **Jennings & KY Senate race** — Not a candidate. Andy Barr won the GOP primary (2026-05-19) over Daniel Cameron; general election is Barr vs. Charles Booker (D) on 2026-11-03. Jennings never filed despite years of speculation. [Wikipedia, Daily Beast, Barrett Media] 4. **Other floated names** — Anna Kelly, Stephen Miller, previously Alina Habba (denied interest), and a newer report of Fox News's Alexis McAdams. No explicit market prices found for these individuals beyond the Jennings-specific contracts. [claude_news, Independent/gdelt] 5. **Historical base rate/tenure** — Trump-era press secretaries: Spicer (~6mo), Sanders (~24mo), Grisham (~9mo), McEnany (~9mo), Leavitt (~19mo, Jan 2025-Aug 2026); mean ~12-14 months, implying high annual turnover (~60-85%) is typical for this role. [code_execution model] 6. **Kalshi vs Polymarket divergence** — Nearly identical (21% vs 22.4%); both show similar sharp 7-day declines from higher peaks, indicating shared information flow (likely reaction to same "no decision yet, Trump not rushing" reporting) rather than independent mispricing. # Key facts (high-confidence) 1. [Wikipedia] Leavitt resigned as press secretary, effective August 2026, after ~19 months. 2. [CNN/Mediaite] Jennings met privately with Susie Wiles (self-initiated) in mid-Aug 2026; sources say he has her informal backing but no offer extended. 3. [The Hill/CNN] Trump has told aides he's "not in a rush" to name a replacement. 4. [Wikipedia] Jennings has no active campaign for KY Senate; Barr is the GOP nominee. 5. [Kalshi/Polymarket] Both markets price Jennings near 21-22% as of latest data, well off recent highs (~42-46%). # Cross-market signals - Kalshi: 21% YES, -25% 7d (sharp fade). - Polymarket: 22.4% YES, -15.75% 7d (similar fade). - No sportsbook market identified; no Polymarket markets found for named alternative candidates (Kelly, Miller, McAdams). # Analyst opinions and speculation - Poynter and CNN analysis suggest Leavitt may be "impossible to replace" given her unique made-for-TV profile, adding uncertainty to any pick. - Some outlets frame Jennings as an "early favorite" (News-Tribune) while others (The Hill) frame him as "downplaying" rumors — mixed signal on his own posture. - A code-execution base-rate model (not accounting for the Wiles-meeting news) estimates P(Jennings)≈6-10%, likely too low since it doesn't fully weight the concrete lobbying/backing reports. # Directional lean per outcome - **Yes**: Frontrunner status, self-initiated Wiles meeting, "has her backing" reporting, market pricing in low-20s (well above baseline uniform prior for 4+ candidates). - **No**: No formal offer/decision; Trump "not rushing"; competing names (Kelly, Miller, McAdams) actively floated; Jennings' non-traditional (media pundit) background diverges from past picks' staffer profiles; recent 7-day price decline on both venues suggests momentum has stalled or reversed. # Gaps / unknowns - No confirmation of internal shortlist size or Trump's personal preference. - Unclear how "Other" resolution (no pick by Dec 31, 2026) affects No-side probability mass — long runway (4+ months) makes eventual pick likely. - No polling/insider data on final decision timeline. # Calibration anchors - Kalshi current YES: 21% (primary anchor). - Polymarket: 22.4% (consistent cross-market confirmation). - Historical press-secretary tenure suggests high probability *someone* will be named as permanent successor within the ~16-month window remaining, but conditional probability it's specifically Jennings is the key uncertainty, estimated in the 15-25% range by markets, cross-checked against a more skeptical bottoms-up model (~6-10%).

1. Both forecasts anchor almost mechanically to the Kalshi/Polymarket 21-22% price without independently stress-testing whether the "sharp 7-day fade" (-25% Kalshi, -15.75% Polymarket) signals genuine new negative information (e.g., a leak that Jennings was passed over) versus mere profit-taking/mean-reversion after a hype peak — neither rationale distinguishes these scenarios, which could imply the true probability should be lower than the stale 21-22% anchor. 2. Neither forecast grapples with the "Other" resolution mechanic explicitly — the brief flags this as a gap ("Unclear how 'Other' resolution... affects No-side probability mass"), yet both treat "someone will be named" as near-certain without discussing the scenario where the WH deliberately leaves the role vacant/uses "acting" designations past Dec 31, which would inflate No regardless of Jennings' relative standing among named candidates. 3. Both forecasts uncritically dismiss the bottoms-up base-rate model (~6-10%) as "likely underweighting Wiles reporting" but neither actually reconciles the gap — a 2x-3x discrepancy between model and market deserves more explicit weighting logic rather than a hand-wave that pulls both estimates to nearly identical 20-21% figures, suggesting anchoring bias toward the market price rather than independent synthesis. 4. Neither forecaster weighs the structural mismatch flagged in the brief — "Jennings' non-traditional (media pundit) background diverges from past picks' staffer profiles" — against the historical reference class of Spicer/Sanders/Grisham/McEnany/Leavitt, all of whom came from campaign/comms staff roles, which arguably should lower Jennings' odds below the market's implied plurality-favorite framing. 5. Both forecasts converge suspiciously tightly (0.20 vs 0.21 Yes) with confidence levels (0.63, 0.68) that don't reflect the genuine uncertainty highlighted by the "high volatility... ranged 8%-42.35%" trading history — given this range, a wider or more differentiated confidence interval seems warranted rather than near-identical point estimates. 6. Neither rationale addresses Leavitt's own stated involvement ("Leavitt says she is advising Trump on the pick") as a potential signal — her preference could meaningfully tilt the decision toward or away from Jennings, and this personnel-dynamics detail from the brief is omitted entirely from both analyses.

18% (66% confidence)

Yes: 18% No: 82%

Both markets converge at 21-22%, which is the primary anchor, but several considerations justify a modest discount. The sharp 7-day fade on both venues (-25%/-15.75%) likely reflects real negative information flow (no offer, Trump 'not in a rush'), and prices in a fast-moving personnel story tend to keep drifting toward the base rate when no confirming news arrives. A bottoms-up model puts Jennings at 6-10%, and Jennings' pundit profile diverges from the campaign/comms-staffer reference class of Spicer/Sanders/Grisham/McEnany/Leavitt, both pulling below the market. Additionally, any scenario where the role is filled on an 'acting' basis or left unresolved past Dec 31 adds mass to No. I settle slightly below the market anchor at 18% Yes.

Total pipeline time: 162.1s