Collins as Maine GOP Senate nominee fully absorbed into pricing

Name: Collins as Maine GOP Senate nominee fully absorbed into pricing
Creator: ClearMarket
Published: 2026-06-10T02:11:22.000Z
License: https://creativecommons.org/licenses/by/4.0/

Kalshi 99%

record: CMSIG2026061008 | category: momentum-repricing | target: CM-EVT-FJC909J0Z4 | published: 2026-06-10

4-bullet brief | narrative

Kalshi prices Susan Collins as the Republican Senate nominee for Maine at 99%, reflecting the primary result as a near-done resolution.
Platner's primary win confirms the Collins matchup; the 99% is fully consistent with Collins having secured her own nomination on the same night.
The broader Senate control question is priced separately: Kalshi puts Republicans winning the Senate at 79% (CM-EVT-S6Y29BSL46 Kansas race), with Maine as one of the competitive seats that shapes that outcome.
Resolves via Republican Party official nominee designation; no credible challenger remaining after primary night makes this effectively settled.

atomic briefs | structured for retrieval

[01] news_event

significance

surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market

story: Democrat Graham Platner won the Maine Democratic primary, setting up a high-stakes November Senate race against Republican incumbent Susan Collins.exa_search → yahoo.com · as_of 2026-06-10T11:36:47+00:00
publisher: yahoo.com
published_at: 2026-06-10T02:11:22.000Z
source_url: https://www.yahoo.com/news/politics/articles/graham-platner-win-maine-democratic-014446949.html

[02] pm_response

interp: Kalshi's 99% on Collins as GOP nominee is lagging the primary result, functioning as a settlement-pending price rather than a forward signal; the live question now is the general-election outcome.llm_judge_cm_signal_v1

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.

internal

cm_event: /events/kxsenatemer-26/

external

venue_a: https://kalshi.com/markets/KXSENATEMER-26-SCOL

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.

HTML	browsers, AI grounded search, crawlers (contains embedded JSON-LD `@type: Dataset`)	`https://clearmarket.fyi/signals/collins-gop-maine-senate-nominee-kalshi-99-2026-06-10/`
JSON	REST API for developers	`https://clearmarket.fyi/signals/collins-gop-maine-senate-nominee-kalshi-99-2026-06-10.json`
MCP	agentic AI tool call (Claude Desktop, Cursor, Continue)	`clearmarket.get_signal("collins-gop-maine-senate-nominee-kalshi-99-2026-06-10")`
AGENT	AI 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": "CMSIG2026061008",
  "published_at": "2026-06-10T02:11:22.000Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "lagging",
  "target_event_id": "CM-EVT-FJC909J0Z4",
  "target_event_slug": "kxsenatemer-26",
  "event_question": "Will Susan Collins be the Republican nominee for the Senate in Maine?",
  "bullets": [
    "Kalshi prices Susan Collins as the Republican Senate nominee for Maine at 99%, reflecting the primary result as a near-done resolution.",
    "Platner's primary win confirms the Collins matchup; the 99% is fully consistent with Collins having secured her own nomination on the same night.",
    "The broader Senate control question is priced separately: Kalshi puts Republicans winning the Senate at 79% (CM-EVT-S6Y29BSL46 Kansas race), with Maine as one of the competitive seats that shapes that outcome.",
    "Resolves via Republican Party official nominee designation; no credible challenger remaining after primary night makes this effectively settled."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "yahoo.com",
          "source_url": "https://www.yahoo.com/news/politics/articles/graham-platner-win-maine-democratic-014446949.html",
          "retrieved_at": "2026-06-10T11:36:47+00:00"
        }
      },
      "significance": {
        "threshold": 5,
        "threshold_unit": "rank",
        "passed": true,
        "reason": "surfaced in the daily Exa news-cycle scan; mechanically matched to an active kalshi market"
      },
      "story": "Democrat Graham Platner won the Maine Democratic primary, setting up a high-stakes November Senate race against Republican incumbent Susan Collins.",
      "publisher": "yahoo.com",
      "published_at": "2026-06-10T02:11:22.000Z",
      "source_url": "https://www.yahoo.com/news/politics/articles/graham-platner-win-maine-democratic-014446949.html"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Kalshi's 99% on Collins as GOP nominee is lagging the primary result, functioning as a settlement-pending price rather than a forward signal; the live question now is the general-election outcome."
    }
  ],
  "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/kxsenatemer-26/",
      "related": []
    },
    "external": {
      "venue_a": "https://kalshi.com/markets/KXSENATEMER-26-SCOL",
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "yahoo.com: Graham Platner to win Maine Democratic Senate primary and face Sen. Su",
      "url": "https://www.yahoo.com/news/politics/articles/graham-platner-win-maine-democratic-014446949.html",
      "published_at": "2026-06-10T02:11:22.000Z",
      "retrieved_at": "2026-06-10T11:36:47+00:00"
    }
  ],
  "field_provenance": {
    "pm_data": "kalshi_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 CMSIG2026061008 published 2026-06-10T02:11:22.000Z signature sha256-f448eb8c1a5… ← underlying event all signals →