Republican holds NC-05 House seat stays heavily favored

Name: Republican holds NC-05 House seat stays heavily favored
Creator: ClearMarket
Published: 2026-10-20T00:00:00.000Z
License: https://creativecommons.org/licenses/by/4.0/

Polymarket 87%

record: CMSIG2026102007 | category: momentum-repricing | target: CM-EVT-1WW8223651 | published: 2026-10-20

4-bullet brief | narrative

Polymarket prices a Republican win in North Carolina's 5th Congressional District at 87%, a strong favorite reading ahead of the November 3 midterms.
Trump's in-state rally reinforces but does not move the already heavy Republican advantage the market has priced into the NC-05 seat.
Companion Polymarket contracts in nearby North Carolina districts, NC-03 at 81% Republican (CM-EVT-MCNRMD34V7) and NC-07 at 80% Republican (CM-EVT-9L1SW3NVQ0), show a consistent statewide lean.
Resolves via UMA oracle on election night or certified results; all three NC contracts show the market pricing a Republican sweep of contested state districts.

atomic briefs | structured for retrieval

[01] news_event

significance

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

story: Trump campaigned in North Carolina as part of a final GOP midterm push, with $5,000 checks deployed as a turnout tool even as some Republican voters expressed skepticism.exa_search → The Associated Press · as_of 2026-10-22T07:47:56+00:00
publisher: The Associated Press
published_at: 2026-10-20T00:00:00.000Z
source_url: https://apnews.com/article/trump-ukraine-zelenskyy-congress-midterm-elections-a298dcb9327bbad29c0bcc9e61955edb

[02] pm_response

interp: Polymarket NC-05 contract at 87%; NC-03 at 81% and NC-07 at 80% form a coherent statewide Republican pricing cluster, consistent with Trump's defensive-rally framing.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/nc-05-house-election-winner/

external

venue_a: polymarket · 0xc4f1456dc523bfe110e6a2afc7c2144ef3925650e78fa826d2211ddae6763a3d

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/nc-05-house-seat-republican-win-polymarket-87-2026-10-20/`
JSON	REST API for developers	`https://clearmarket.fyi/signals/nc-05-house-seat-republican-win-polymarket-87-2026-10-20.json`
MCP	agentic AI tool call (Claude Desktop, Cursor, Continue)	`clearmarket.get_signal("nc-05-house-seat-republican-win-polymarket-87-2026-10-20")`
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": "CMSIG2026102007",
  "published_at": "2026-10-20T00:00:00.000Z",
  "detection": "news_cycle",
  "category_tag": "MOMENTUM_REPRICING",
  "secondary_tags": [],
  "pre_news_classification": "concurrent",
  "target_event_id": "CM-EVT-1WW8223651",
  "target_event_slug": "nc-05-house-election-winner",
  "event_question": "Will the NC-05 House seat be won by a Republican in the 2026 election?",
  "bullets": [
    "Polymarket prices a Republican win in North Carolina's 5th Congressional District at 87%, a strong favorite reading ahead of the November 3 midterms.",
    "Trump's in-state rally reinforces but does not move the already heavy Republican advantage the market has priced into the NC-05 seat.",
    "Companion Polymarket contracts in nearby North Carolina districts, NC-03 at 81% Republican (CM-EVT-MCNRMD34V7) and NC-07 at 80% Republican (CM-EVT-9L1SW3NVQ0), show a consistent statewide lean.",
    "Resolves via UMA oracle on election night or certified results; all three NC contracts show the market pricing a Republican sweep of contested state districts."
  ],
  "atomic_claims": [
    {
      "type": "news_event",
      "field_provenance": {
        "story": {
          "tier": "mediated",
          "method": "exa_search",
          "source": "The Associated Press",
          "source_url": "https://apnews.com/article/trump-ukraine-zelenskyy-congress-midterm-elections-a298dcb9327bbad29c0bcc9e61955edb",
          "retrieved_at": "2026-10-22T07:47:56+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": "Trump campaigned in North Carolina as part of a final GOP midterm push, with $5,000 checks deployed as a turnout tool even as some Republican voters expressed skepticism.",
      "publisher": "The Associated Press",
      "published_at": "2026-10-20T00:00:00.000Z",
      "source_url": "https://apnews.com/article/trump-ukraine-zelenskyy-congress-midterm-elections-a298dcb9327bbad29c0bcc9e61955edb"
    },
    {
      "type": "pm_response",
      "field_provenance": {
        "notes": {
          "tier": "editorial",
          "method": "llm_judge_cm_signal_v1"
        }
      },
      "notes": "Polymarket NC-05 contract at 87%; NC-03 at 81% and NC-07 at 80% form a coherent statewide Republican pricing cluster, consistent with Trump's defensive-rally framing."
    }
  ],
  "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/nc-05-house-election-winner/",
      "related": []
    },
    "external": {
      "venue_a": null,
      "venue_b": null,
      "benchmark": null
    }
  },
  "sources": [
    {
      "label": "The Associated Press: The Latest: Trump to campaign in North Carolina as part of final GOP p",
      "url": "https://apnews.com/article/trump-ukraine-zelenskyy-congress-midterm-elections-a298dcb9327bbad29c0bcc9e61955edb",
      "published_at": "2026-10-20T00:00:00.000Z",
      "retrieved_at": "2026-10-22T07:47:56+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 CMSIG2026102007 published 2026-10-20T00:00:00.000Z signature sha256-58cf238d720… ← underlying event all signals →