CM ClearMarket
SYSTEM: LIVE · PRICES: HOURLY REFRESH · COVERAGE: ~3,860 EVENTS / ~39,200 MARKETS · KALSHI + POLYMARKET

Trump endorsing Vance for president before 2027 stays a long shot

Polymarket 6%
record: CMSIG2026102808 | category: momentum-repricing | target: CM-EVT-VYGG3P41R5 | published: 2026-10-28
4-bullet brief | narrative
  • The Polymarket contract on Trump endorsing Vance for president before 2027 prices at just 6%, a long-shot read.
  • Vance's dual public hawk and private diplomatic posture on Iran suggests an alignment with Trump's agenda rather than an independent political standing that might prompt early endorsement.
  • A separate Polymarket contract asks whether Vance will announce he will not run for president in 2028 this year, priced at 7%, reinforcing the market's view that the 2028 race remains wide open and unresolved.
  • Resolves via UMA oracle; the 6% price likely reflects the market treating a 2026 endorsement as a logistically unlikely political maneuver given no imminent primary calendar.
atomic briefs
[01] news_event
significance
surfaced in the daily Exa news-cycle scan; mechanically matched to an active polymarket market
story
Vice President JD Vance secretly reached out to Iran's security chief with a letter seeking to restart peace talks, even as he publicly backed the US-Iran war, at President Trump's direction.exa_search → Benoit Faucon, Alexander Ward, Natalie Andrews · as_of 2026-10-29T14:55:20+00:00
[mediated]
publisher
Benoit Faucon, Alexander Ward, Natalie Andrews
published_at
2026-10-28T23:00:00.000Z
[02] pm_response
interp
Polymarket resolves via UMA oracle on public statements; Vance's diplomatic role keeps him prominent but the market does not treat that as a 2028 endorsement catalyst.llm_judge_cm_signal_v1
[editorial]
evaluation

News-cycle wires publish on coverage, not editorial selection — the day’s top stories matched to the prediction markets pricing them, so nothing is cherry-picked.

judge_engine
none — deterministic news-cycle scan
judge_verdict
auto_published
judge_confidence
n/a — no judge gate (deterministic publishing)
prompt_template
news_cycle_v1 github · auditable
match_method
entity_slug_match (mechanical)
citation graph

Every wire traces back to the ClearMarket event it is built on, and out to each venue’s own market page — so any figure here can be verified at its source.

external
venue_a
polymarket · 0x9c414cb64000dc7645b2bba8d7586746f3ddb1cfd1b564769188b81cd63ad667
programmatic access · four surfaces, same payload

AI grounded search reads embedded JSON-LD in HTML. Developers query REST. Agentic AI clients (Claude Desktop, Cursor) call MCP tools. AI crawlers index via /llms.txt. Same canonical record at every surface.

HTMLbrowsers, AI grounded search, crawlers (contains embedded JSON-LD @type: Dataset)https://clearmarket.fyi/signals/trump-endorses-vance-for-2028-before-2027-polymarket-6-2026-10-28/
JSONREST API for developershttps://clearmarket.fyi/signals/trump-endorses-vance-for-2028-before-2027-polymarket-6-2026-10-28.json
MCPagentic AI tool call (Claude Desktop, Cursor, Continue)clearmarket.get_signal("trump-endorses-vance-for-2028-before-2027-polymarket-6-2026-10-28")
AGENTAI crawler discovery index/llms.txt

PM data: platform APIs (hourly refresh). News context: retrieved with source citations. Editorial judgment: LLM judge with prompt template versioned per wire type. Per-claim provenance inline above; full per-field provenance map at the JSON endpoint under field_provenance.

raw JSON record · same payload returned by REST endpoint
{
  "$schema": "https://clearmarket.fyi/schema/signal/v1.json",
  "provenance_version": "0.2.0",
  "record_id": "CMSIG2026102808",
  "published_at": "2026-10-28T23:00:00.000Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "concurrent",
  "target_event_id": "CM-EVT-VYGG3P41R5",
  "target_event_slug": "will-trump-endorse-jd-vance-for-president-before-2027",
  "event_question": "Will Trump endorse JD Vance for president before 2027?",
  "bullets": [
    "The Polymarket contract on Trump endorsing Vance for president before 2027 prices at just 6%, a long-shot read.",
    "Vance's dual public hawk and private diplomatic posture on Iran suggests an alignment with Trump's agenda rather than an independent political standing that might prompt early endorsement.",
    "A separate Polymarket contract asks whether Vance will announce he will not run for president in 2028 this year, priced at 7%, reinforcing the market's view that the 2028 race remains wide open and unresolved.",
    "Resolves via UMA oracle; the 6% price likely reflects the market treating a 2026 endorsement as a logistically unlikely political maneuver given no imminent primary calendar."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "Benoit Faucon, Alexander Ward, Natalie Andrews",
          "source_url": "https://www.wsj.com/world/middle-east/vance-reaches-out-to-iranian-hard-liner-in-bid-to-restart-peace-talks-2c8a2ab8",
          "retrieved_at": "2026-10-29T14:55:20+00:00"
        }
      },
      "significance": {
        "threshold": 5,
        "threshold_unit": "rank",
        "passed": true,
        "reason": "surfaced in the daily Exa news-cycle scan; mechanically matched to an active polymarket market"
      },
      "story": "Vice President JD Vance secretly reached out to Iran's security chief with a letter seeking to restart peace talks, even as he publicly backed the US-Iran war, at President Trump's direction.",
      "publisher": "Benoit Faucon, Alexander Ward, Natalie Andrews",
      "published_at": "2026-10-28T23:00:00.000Z",
      "source_url": "https://www.wsj.com/world/middle-east/vance-reaches-out-to-iranian-hard-liner-in-bid-to-restart-peace-talks-2c8a2ab8"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Polymarket resolves via UMA oracle on public statements; Vance's diplomatic role keeps him prominent but the market does not treat that as a 2028 endorsement catalyst."
    }
  ],
  "evaluation": {
    "judge_engine": "none — deterministic news-cycle scan",
    "judge_verdict": "auto_published",
    "judge_confidence": null,
    "prompt_template": "news_cycle_v1"
  },
  "citations": {
    "internal": {
      "cm_event": "/events/will-trump-endorse-jd-vance-for-president-before-2027/",
      "related": []
    },
    "external": {
      "venue_a": null,
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "Benoit Faucon, Alexander Ward, Natalie Andrews: Exclusive | Vance Reaches Out to Iranian Hard-Liner in Bid to Restart",
      "url": "https://www.wsj.com/world/middle-east/vance-reaches-out-to-iranian-hard-liner-in-bid-to-restart-peace-talks-2c8a2ab8",
      "published_at": "2026-10-28T23:00:00.000Z",
      "retrieved_at": "2026-10-29T14:55:20+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "polymarket_api",
    "news_context": "exa_search",
    "editorial_judgment": "cm_signal_llm_judge"
  }
}
PROVENANCE PROTOCOL v0.2 · [direct] venue api · [mediated] grounded web fetch + source url · [derived] computed from listed inputs · [editorial] versioned llm judgment · full spec /schema/provenance/v1
record CMSIG2026102808 published 2026-10-28T23:00:00.000Z signature sha256-51b9f37102e… ← underlying event all signals →