{
  "branch": "ELECTION-01",
  "created_utc": "2026-09-10T02:00:00Z",
  "updated_utc": "2026-09-10T16:15:00Z",
  "status": "AVAILABILITY_PROGRESS",
  "do_not_ingest_html_as_csv": true,
  "model_change": false,
  "fitting_authorized": false,
  "html_as_csv_incident": {
    "source": "FiveThirtyEight publisher-linked president_polls_historical.csv",
    "observation_prior": "HTTP 200 with text/html in Codex audit environment \u2014 REJECT as CSV",
    "observation_2026_09_10": "HTTP 302 to https://abcnews.go.com/politics with empty body \u2014 still REJECT as CSV",
    "status": "VERIFIED_REJECT",
    "observation_2026_09_10_polls_pass": "HTTP200 text/html final_url=https://abcnews.com/politics (projects.fivethirtyeight.com/polls/data/president_polls_historical.csv and polls-page/data/... both land on ABC HTML) \u2014 still REJECT as CSV",
    "observation_2026_09_10_pass2": "HTTP200 text/html final_url=https://abcnews.com/politics \u2014 still REJECT as CSV"
  },
  "sources": [
    {
      "id": "House_Clerk_Election_Statistics",
      "role": "authoritative_outcome_labels_primary_archive",
      "url": "https://history.house.gov/Institution/Election-Statistics/Election-Statistics/",
      "audit_status": "VERIFIED \u2014 all 15 presidential cycles 1968\u20132024 resolve to HTTP200 application/pdf on historycms.house.gov (sizes recorded per cycle)",
      "license_redistribution": "US_GOVERNMENT_WORK \u2014 U.S. House Clerk/Office of the Historian publication; public domain / unrestricted government work; record citation before republish of extracted tables",
      "notes": "Official state-certified federal election vote counts. Labels only \u2014 not pre-election features. National two-party denominator extraction+hash still OPEN."
    },
    {
      "id": "FEC",
      "role": "authoritative_outcome_labels_secondary_or_primary_when_available",
      "url": "https://www.fec.gov/introduction-campaign-finance/election-results-and-voting-information/",
      "audit_status": "VERIFIED_PARTIAL \u2014 Federal Elections series linked 1982\u20132022 on landing; Official 2024 Presidential General Election Results PDF HTTP200; pre-1982 presidential cycles not in FEC Federal Elections series on site",
      "license_redistribution": "US_GOVERNMENT_WORK \u2014 FEC compilation of state-certified results; public domain / unrestricted government work; record citation before republish",
      "notes": "Compile official results from state election offices; FEC is a public compilation service."
    },
    {
      "id": "MIT_Election_Lab",
      "role": "structured_secondary_outcome_crosscheck",
      "url": "https://electionlab.mit.edu/data",
      "audit_status": "VERIFIED_PARTIAL \u2014 statewide U.S. President 1976\u20132020 documented; county presidential 2000\u20132024; 1968\u20131972 out of statewide range (BLOCKED for MIT); 2024 statewide not in 1976\u20132020 file",
      "license_redistribution": "PUBLIC_DOMAIN \u2014 Harvard Dataverse MIT Election Lab presidential returns commonly released public domain (e.g. doi:10.7910/DVN/42MVDX); confirm exact license on download; record before republish",
      "notes": "Not independent predictive evidence. Dataset version/hash OPEN."
    },
    {
      "id": "FiveThirtyEight_polls_repo",
      "role": "historical_poll_average_caveat",
      "url": "https://github.com/fivethirtyeight/data/tree/master/polls",
      "audit_status": "VERIFIED_CAVEAT \u2014 retrospective averages on GitHub; projects.* individual CSV endpoints REJECT (HTML); not automatic PIT predictors",
      "license_redistribution": "OPEN \u2014 GitHub/FiveThirtyEight/ABC terms; record before republish",
      "notes": "GitHub tree reachable. raw.githubusercontent.com/.../pres_pollaverages_1968-2016.csv is real CSV but retrospective averages (modeldate) \u2260 release-dated individual polls. Raw poll acquisition prefers publisher archives with publication dates (Marist/Gallup/Pew/Roper)."
    },
    {
      "id": "FiveThirtyEight_president_polls_historical_csv_endpoint",
      "role": "negative_control_example",
      "url": "https://projects.fivethirtyeight.com/polls/data/president_polls_historical.csv",
      "audit_status": "VERIFIED_REJECT \u2014 HTML-as-CSV / non-CSV: pass2 2026-09-10 HTTP200 text/html \u2192 abcnews.com/politics; DO NOT ingest as CSV",
      "license_redistribution": "n/a",
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "ALFRED",
      "role": "economic_vintages",
      "url": "https://alfred.stlouisfed.org/help/downloaddata",
      "audit_status": "VERIFIED_POINTER \u2014 per-series vintage coverage OPEN; today revised FRED cannot stand in",
      "license_redistribution": "OPEN \u2014 St. Louis Fed terms; record before republish"
    },
    {
      "id": "ANES",
      "role": "survey_affect_candidate_and_M4_trust_feature_source",
      "urls": [
        "https://electionstudies.org/data-center/2024-time-series-study/",
        "https://electionstudies.org/data-center/anes-time-series-cumulative-data-file/"
      ],
      "audit_status": "VERIFIED_AVAILABILITY_RISK \u2014 2024 Full Release dated 2025-08-08 on study page; same-election microdata BLOCKED for 2024 PIT; other cycles OPEN pending contemporaneous proof",
      "license_redistribution": "RESTRICTED \u2014 do not publish respondent microdata to public Hub; metadata/code/links OK by default"
    },
    {
      "id": "Voteview",
      "role": "elite_separation_candidate",
      "url": "https://voteview.com/data",
      "audit_status": "VERIFIED_POINTER \u2014 need historical vintage; existing N3/N4 panels not automatically prediction-safe; landing HTTP200",
      "license_redistribution": "OPEN \u2014 record before republish"
    },
    {
      "id": "Roper_iPoll",
      "role": "preferred_poll_publisher_archive_pointer",
      "url": "https://ropercenter.cornell.edu/ipoll/",
      "audit_status": "OPEN_PREFERRED \u2014 landing HTTP200; product docs claim field dates + methodology on study/question records; archive built from public poll releases; membership often required for full download; per-cycle T\u221260 national LV inventory not yet extracted",
      "license_redistribution": "RESTRICTED_LIKELY \u2014 institutional membership/terms; do not republish microdata/toplines without license; metadata/links OK"
    },
    {
      "id": "Marist_Poll_publisher",
      "role": "publisher_release_dated_national_poll_archive_example",
      "url": "https://maristpoll.marist.edu/latest-polls/",
      "audit_status": "VERIFIED_PARTIAL \u2014 multi-cycle publisher publication-date proof: 2016-08-05 HTML+PDF Immediate Release \u2264 T\u221260 (2016-09-09); 2016-09-23 HTML > T\u221260 boundary; 2020-06-26 HTML \u2264 T\u221260 (2020-09-04) + June/August 2020 national tables PDFs HTTP200 application/pdf; 2024-06-18 & 2024-08-06 \u2264 T\u221260; 2024-09-10 > T\u221260. Not a complete LV inventory.",
      "license_redistribution": "RESTRICTED \u2014 All Rights Reserved \u00a9 Marist University / Marist Institute for Public Opinion; Terms of Use; do not republish poll content without permission; links/metadata OK",
      "notes": "Strong release-date proof class for PIT across 2016/2020/2024. LV vs RV labeling must be read per release. Full per-cycle inventory still OPEN.",
      "evidence_urls": [
        "https://maristpoll.marist.edu/polls/85-clinton-with-wide-lead-over-trump-nationally/",
        "https://maristpoll.marist.edu/polls/923-clinton-leads-trump-by-7-points-nationally/",
        "https://maristpoll.marist.edu/wp-content/misc/usapolls/US160801/Complete%20August%202016%20McClatchy-Marist%20Poll%20Survey%20Findings%20and%20Tables.pdf",
        "https://maristpoll.marist.edu/polls/npr-pbs-newshour-marist-poll-results-2020-presidential-election-and-trumps-approval-rating/",
        "https://maristpoll.marist.edu/wp-content/uploads/2020/06/NPR_PBS-NewsHour_Marist-Poll_USA-NOS-and-Tables_2006251102.pdf",
        "https://maristpoll.marist.edu/wp-content/uploads/2020/08/NPR_PBS-NewsHour_Marist-Poll_USA-NOS-and-TABLES_202008121039.pdf",
        "https://maristpoll.marist.edu/polls/the-2024-presidential-election-june-2024/",
        "https://maristpoll.marist.edu/polls/the-2024-presidential-contest-august-2024/",
        "https://maristpoll.marist.edu/polls/the-u-s-presidential-contest-september-2024/"
      ],
      "evidence_publication_dates": {
        "2016-08-05": "\u2264 T\u221260 2016-09-09 (HTML visible date + PDF Immediate Release)",
        "2016-09-23": "> T\u221260 2016-09-09 (excluded at primary cutoff)",
        "2020-06-26": "\u2264 T\u221260 2020-09-04 (HTML visible date; tables PDF field Jun 22\u201324)",
        "2020-08-tables-pdf": "field Aug 3\u201311 2020 PDF HTTP200; NPR story published 2020-08-14 \u2264 T\u221260",
        "2024-06-18": "\u2264 T\u221260 2024-09-06",
        "2024-08-06": "\u2264 T\u221260 2024-09-06",
        "2024-09-10": "> T\u221260 2024-09-06 (excluded at primary cutoff)"
      },
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "Gallup_publisher",
      "role": "publisher_dated_poll_reports_and_historical_trial_heat_trends",
      "urls": [
        "https://news.gallup.com/poll/110548/Gallup-Presidential-Election-Trial-Heat-Trends.aspx",
        "https://news.gallup.com/topic/election-2024.aspx"
      ],
      "audit_status": "VERIFIED_PARTIAL \u2014 Trial-Heat Trends 1936\u20132008 page HTTP200 datePublished 2008-09-24 (retrospective compilation); 2020 publisher articles with datePublished \u2264 T\u221260 2020-09-04: 2020-08-14 / 2020-08-17 / 2020-08-24 (election-adjacent; not pure horse-race LV inventory). Individual horse-race release archive completeness OPEN.",
      "license_redistribution": "RESTRICTED \u2014 Gallup commercial/publisher terms; do not republish tables without license; links/citation OK",
      "notes": "Useful publisher datePublished metadata. Historical trends page is not itself a PIT raw-poll ledger.",
      "evidence_urls": [
        "https://news.gallup.com/poll/110548/Gallup-Presidential-Election-Trial-Heat-Trends.aspx",
        "https://news.gallup.com/poll/317474/say-neither-candidate-good-president.aspx",
        "https://news.gallup.com/poll/317477/trump-job-approval-below-seven-key-issues.aspx",
        "https://news.gallup.com/poll/317771/democratic-edge-party-affiliation-shrinks.aspx",
        "https://news.gallup.com/topic/election-2024.aspx"
      ],
      "evidence_publication_dates": {
        "2008-09-24": "trial-heat trends compilation datePublished (retrospective)",
        "2020-08-14": "\u2264 T\u221260 2020-09-04 datePublished",
        "2020-08-17": "\u2264 T\u221260 2020-09-04 datePublished",
        "2020-08-24": "\u2264 T\u221260 2020-09-04 datePublished"
      },
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "PollingReport_com",
      "role": "secondary_field_date_poll_compilation_archive",
      "url": "https://www.pollingreport.com/",
      "audit_status": "VERIFIED_PARTIAL \u2014 cycle HTML archives HTTP200 with field-date tables: 2000.htm, wh04gen, wh08gen, wh12gen, wh16gen, 2020wh_g.htm, 2024.htm. 1992.htm / 1996.htm / wh8x/wh9xgen paths HTTP404 this pass (no early-cycle PollingReport pages found). Release timestamps rare (mostly field dates). Secondary compilation \u2260 publisher release proof.",
      "license_redistribution": "RESTRICTED \u2014 Copyright Polling Report, Inc. and polling/sponsoring organizations; some content subscriber-gated; do not republish tables wholesale; links OK",
      "notes": "Advance availability evidence for which cycles have compiled national trial-heat tables online. Strict eligible_strict_PIT still needs release\u2264cutoff from publishers/Roper.",
      "cycle_pages_verified_http200": {
        "2000": "https://www.pollingreport.com/2000.htm",
        "2004": "https://www.pollingreport.com/wh04gen.htm",
        "2008": "https://www.pollingreport.com/wh08gen.htm",
        "2012": "https://www.pollingreport.com/wh12gen.htm",
        "2016": "https://www.pollingreport.com/wh16gen.htm",
        "2020": "https://www.pollingreport.com/2020wh_g.htm",
        "2024": "https://www.pollingreport.com/2024.htm"
      },
      "cycle_pages_http404": {
        "1992": "https://www.pollingreport.com/1992.htm",
        "1996": "https://www.pollingreport.com/1996.htm",
        "wh96gen": "https://www.pollingreport.com/wh96gen.htm",
        "wh92gen": "https://www.pollingreport.com/wh92gen.htm",
        "wh88gen": "https://www.pollingreport.com/wh88gen.htm",
        "wh84gen": "https://www.pollingreport.com/wh84gen.htm",
        "wh80gen": "https://www.pollingreport.com/wh80gen.htm"
      },
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "Pew_Research_publisher_releases",
      "role": "publisher_dated_topline_pdf_and_report_archive",
      "url": "https://www.pewresearch.org/politics/",
      "audit_status": "VERIFIED_PARTIAL \u2014 dated publisher proof: 2020-08-13 politics article HTTP200 with article:published_time / datePublished 2020-08-13T14:10:20-04:00 \u2264 T\u221260 2020-09-04; 2024 topline PDF PP_2024.9.9_harris-trump_TOPLINE.pdf HTTP200 application/pdf path date 2024-09-09 > T\u221260 2024-09-06. Useful release-date proof class; not a full multi-cycle horse-race inventory.",
      "license_redistribution": "RESTRICTED \u2014 Pew Research Center terms; typically allow citation with attribution; do not bulk-republish datasets/PDFs without checking terms; links/metadata OK",
      "notes": "Prefer for attitude/context features; horse-race LV coverage sparse vs aggregators.",
      "evidence_urls": [
        "https://www.pewresearch.org/politics/2020/08/13/election-2020-voters-are-highly-engaged-but-nearly-half-expect-to-have-difficulties-voting/",
        "https://www.pewresearch.org/wp-content/uploads/sites/20/2024/09/PP_2024.9.9_harris-trump_TOPLINE.pdf",
        "https://www.pewresearch.org/politics/"
      ],
      "evidence_publication_dates": {
        "2020-08-13": "\u2264 T\u221260 2020-09-04 (datePublished)",
        "2024-09-09": "> T\u221260 2024-09-06 (topline PDF path date)"
      },
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "Quinnipiac_University_Poll",
      "role": "publisher_release_dated_national_poll_archive_example",
      "url": "https://poll.qu.edu/poll-results",
      "audit_status": "VERIFIED_PARTIAL \u2014 2024-08-29 national release HTTP200 (poll-release?releaseid=3903) with visible August 29, 2024; PDF https://poll.qu.edu/images/polling/us/us08292024_unwt24.pdf HTTP200 application/pdf text 'FOR RELEASE: AUGUST 29, 2024' \u2264 T\u221260 2024-09-06. Multi-cycle inventory OPEN.",
      "license_redistribution": "RESTRICTED \u2014 Quinnipiac University Poll terms; citation OK; do not republish tables wholesale without permission; links/metadata OK",
      "notes": "Strong FOR RELEASE dated PDF+HTML class for PIT. LV labeling present on 2024-08-29 release.",
      "evidence_urls": [
        "https://poll.qu.edu/poll-release?releaseid=3903",
        "https://poll.qu.edu/images/polling/us/us08292024_unwt24.pdf"
      ],
      "evidence_publication_dates": {
        "2024-08-29": "\u2264 T\u221260 2024-09-06 (HTML + FOR RELEASE PDF)"
      },
      "pass2_verified_utc": "2026-09-10T12:45:00Z"
    },
    {
      "id": "HuffPost_Pollster_API",
      "role": "historical_aggregator_api_negative_probe",
      "url": "https://elections.huffingtonpost.com/pollster/api/v2/polls",
      "audit_status": "BLOCKED_DEAD \u2014 HTTP404 on v2 polls endpoint this pass; API no longer maintained (community reports). Do not depend on for new acquisition.",
      "license_redistribution": "n/a"
    }
  ],
  "licenses_policy": "No paid data ordered. Record source terms, licenses, redistribution permissions before republishing. Public accessibility is not a blanket redistribution license. Publish metadata/code/links by default; do not publish respondent microdata to the public Hub. US government works (House Clerk, FEC) treated as public domain with citation required.",
  "availability_matrix": [
    {
      "cycle": 1968,
      "election_day": "1968-11-05",
      "cutoff_T60_America_New_York_end_of_day": "1968-09-06",
      "cutoff_T30_sensitivity_only": "1968-10-06",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2172344 via https://history.house.gov/Institution/Election-Statistics/1968election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1968election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "OPEN \u2014 FEC Federal Elections series on fec.gov starts 1982; use House Clerk primary for this cycle; FEC totals not pinned",
      "outcome_MIT_Election_Lab": "BLOCKED \u2014 MIT statewide presidential file documents 1976\u20132020 only; cycle outside range",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2172344,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1972,
      "election_day": "1972-11-07",
      "cutoff_T60_America_New_York_end_of_day": "1972-09-08",
      "cutoff_T30_sensitivity_only": "1972-10-08",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2251020 via https://history.house.gov/Institution/Election-Statistics/1972election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1972election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "OPEN \u2014 FEC Federal Elections series on fec.gov starts 1982; use House Clerk primary for this cycle; FEC totals not pinned",
      "outcome_MIT_Election_Lab": "BLOCKED \u2014 MIT statewide presidential file documents 1976\u20132020 only; cycle outside range",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2251020,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1976,
      "election_day": "1976-11-02",
      "cutoff_T60_America_New_York_end_of_day": "1976-09-03",
      "cutoff_T30_sensitivity_only": "1976-10-03",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2585668 via https://history.house.gov/Institution/Election-Statistics/1976election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1976election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "OPEN \u2014 FEC Federal Elections series on fec.gov starts 1982; use House Clerk primary for this cycle; FEC totals not pinned",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2585668,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1980,
      "election_day": "1980-11-04",
      "cutoff_T60_America_New_York_end_of_day": "1980-09-05",
      "cutoff_T30_sensitivity_only": "1980-10-05",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2964920 via https://history.house.gov/Institution/Election-Statistics/1980election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1980election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "OPEN \u2014 FEC Federal Elections series on fec.gov starts 1982; use House Clerk primary for this cycle; FEC totals not pinned",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2964920,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1984,
      "election_day": "1984-11-06",
      "cutoff_T60_America_New_York_end_of_day": "1984-09-07",
      "cutoff_T30_sensitivity_only": "1984-10-07",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2784672 via https://history.house.gov/Institution/Election-Statistics/1984election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1984election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2784672,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1988,
      "election_day": "1988-11-08",
      "cutoff_T60_America_New_York_end_of_day": "1988-09-09",
      "cutoff_T30_sensitivity_only": "1988-10-09",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=2705080 via https://history.house.gov/Institution/Election-Statistics/1988election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1988election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 no PollingReport cycle page verified this pass; Gallup 1936\u20132008 trial-heat trends page is retrospective compilation only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 2705080,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 1992,
      "election_day": "1992-11-03",
      "cutoff_T60_America_New_York_end_of_day": "1992-09-04",
      "cutoff_T30_sensitivity_only": "1992-10-04",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=3479297 via https://history.house.gov/Institution/Election-Statistics/1992election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1992election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 PollingReport cycle pages HTTP404 this pass (1992.htm/1996.htm/wh9xgen); Gallup 1936\u20132008 trial-heat trends retrospective only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 3479297,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "pollingreport_http404": true
      }
    },
    {
      "cycle": 1996,
      "election_day": "1996-11-05",
      "cutoff_T60_America_New_York_end_of_day": "1996-09-06",
      "cutoff_T30_sensitivity_only": "1996-10-06",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=3483869 via https://history.house.gov/Institution/Election-Statistics/1996election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/1996election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 PollingReport cycle pages HTTP404 this pass (1992.htm/1996.htm/wh9xgen); Gallup 1936\u20132008 trial-heat trends retrospective only; need Roper/publisher release\u2264T\u221260 proof; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 3483869,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "release_date_proof": "NOT_YET_PROVEN",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "pollingreport_http404": true
      }
    },
    {
      "cycle": 2000,
      "election_day": "2000-11-07",
      "cutoff_T60_America_New_York_end_of_day": "2000-09-08",
      "cutoff_T30_sensitivity_only": "2000-10-08",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=363824 via https://history.house.gov/Institution/Election-Statistics/2000election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2000election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 PollingReport field-date archive VERIFIED HTTP200 for this cycle; Gallup trial-heat trends retrospective pointer (pre-2008 coverage on 1936\u20132008 page); per-poll publisher release\u2264T\u221260 NOT yet proven; Roper preferred for release-dated records; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 363824,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/2000.htm",
        "release_date_proof": "NOT_YET_PROVEN_PER_POLL \u2014 PollingReport field-date only",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 2004,
      "election_day": "2004-11-02",
      "cutoff_T60_America_New_York_end_of_day": "2004-09-03",
      "cutoff_T30_sensitivity_only": "2004-10-03",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=330155 via https://history.house.gov/Institution/Election-Statistics/2004election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2004election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN \u2014 PollingReport field-date archive VERIFIED HTTP200 for this cycle; Gallup trial-heat trends retrospective pointer (pre-2008 coverage on 1936\u20132008 page); per-poll publisher release\u2264T\u221260 NOT yet proven; Roper preferred for release-dated records; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 330155,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/wh04gen.htm",
        "release_date_proof": "NOT_YET_PROVEN_PER_POLL \u2014 PollingReport field-date only",
        "polls_pass2_utc": "2026-09-10T12:45:00Z"
      }
    },
    {
      "cycle": 2008,
      "election_day": "2008-11-04",
      "cutoff_T60_America_New_York_end_of_day": "2008-09-05",
      "cutoff_T30_sensitivity_only": "2008-10-05",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=340249 via https://history.house.gov/Institution/Election-Statistics/2008election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2008election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN* \u2014 Gallup Daily 2008 RV publication dates 2008-08-01/06/11/14/22/29 \u2264T-60 hashed (pass4); PollingReport wh08gen.htm field-date; full LV inventory NOT frozen; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 340249,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/wh08gen.htm",
        "release_date_proof": "PARTIAL_EXAMPLES",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "polls_pass4_utc": "2026-09-10T16:15:00Z",
        "gallup_pub_dates_le_T60": [
          "2008-08-01",
          "2008-08-06",
          "2008-08-11",
          "2008-08-14",
          "2008-08-22",
          "2008-08-29"
        ]
      }
    },
    {
      "cycle": 2012,
      "election_day": "2012-11-06",
      "cutoff_T60_America_New_York_end_of_day": "2012-09-07",
      "cutoff_T30_sensitivity_only": "2012-10-07",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=271350 via https://history.house.gov/Institution/Election-Statistics/2012election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2012election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN* \u2014 USC Annenberg original ASPX Wayback 2012-08-24 \u2264T-60 LV horse-race hashed (pass4 retry); Quinnipiac 2012-07-11 national RV \u2264T-60; PollingReport wh12gen.htm field-date; post-migration USC URL still NOT_ELIGIBLE_YET; full LV inventory NOT frozen; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 271350,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/wh12gen.htm",
        "release_date_proof": "PARTIAL_EXAMPLES",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "polls_pass4_utc": "2026-09-10T16:15:00Z",
        "usc_aspx_wayback_le_T60": [
          "2012-08-23"
        ],
        "quinnipiac_pub_dates_le_T60": [
          "2012-07-11"
        ]
      }
    },
    {
      "cycle": 2016,
      "election_day": "2016-11-08",
      "cutoff_T60_America_New_York_end_of_day": "2016-09-09",
      "cutoff_T30_sensitivity_only": "2016-10-09",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=663413 via https://history.house.gov/Institution/Election-Statistics/2016election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2016election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN\u2020 \u2014 Marist 2016-08-05 \u2264T-60 (RV headline); Quinnipiac 2016-08-25 national LV \u2264T-60 hashed (pass4); 2016-09-23 >T-60; PollingReport wh16gen.htm; full LV inventory NOT frozen; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 663413,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/wh16gen.htm",
        "release_date_proof": "PARTIAL_EXAMPLES",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "marist_pub_dates_le_T60": [
          "2016-08-05"
        ],
        "marist_pub_dates_gt_T60": [
          "2016-09-23"
        ],
        "marist_pdf_immediate_release": "2016-08-05",
        "quinnipiac_pub_dates_le_T60": [
          "2016-08-25"
        ],
        "polls_pass4_utc": "2026-09-10T16:15:00Z"
      }
    },
    {
      "cycle": 2020,
      "election_day": "2020-11-03",
      "cutoff_T60_America_New_York_end_of_day": "2020-09-04",
      "cutoff_T30_sensitivity_only": "2020-10-04",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=602169 via https://history.house.gov/Institution/Election-Statistics/2020election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2020election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 FEC Federal Elections publication linked on fec.gov landing for this cycle; totals hash/two-party denom OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "VERIFIED \u2014 in MIT statewide U.S. President 1976\u20132020 catalog (landing 200); version/hash OPEN; secondary check only",
      "polls_public_by_cutoff": "OPEN\u2020 \u2014 Marist publisher 2020-06-26 HTML \u2264 T\u221260 + Jun/Aug 2020 tables PDFs HTTP200; Pew 2020-08-13 datePublished \u2264 T\u221260; Gallup 2020-08-14/17/24 datePublished \u2264 T\u221260 (election-adjacent); PollingReport 2020wh_g.htm HTTP200; full LV inventory NOT frozen; FTE CSV BLOCKED",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "OPEN \u2014 contemporaneous public availability not yet proven per cycle; default exclude same-election microdata until release\u2264cutoff shown",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 602169,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "pollingreport_page": "https://www.pollingreport.com/2020wh_g.htm",
        "release_date_proof": "PARTIAL_EXAMPLES",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "marist_pub_dates_le_T60": [
          "2020-06-26"
        ],
        "pew_pub_dates_le_T60": [
          "2020-08-13"
        ],
        "gallup_pub_dates_le_T60": [
          "2020-08-14",
          "2020-08-17",
          "2020-08-24"
        ]
      }
    },
    {
      "cycle": 2024,
      "election_day": "2024-11-05",
      "cutoff_T60_America_New_York_end_of_day": "2024-09-06",
      "cutoff_T30_sensitivity_only": "2024-10-06",
      "outcome_House_Clerk": "VERIFIED \u2014 Clerk Election Statistics PDF HTTP200 application/pdf size_bytes=608100 via https://history.house.gov/Institution/Election-Statistics/2024election/ \u2192 https://historycms.house.gov/Institution/Election-Statistics/2024election/; national two-party totals extraction+hash OPEN; labels not PIT features",
      "outcome_FEC": "VERIFIED \u2014 Official 2024 Presidential General Election Results PDF HTTP200 application/pdf (fec.gov/resources/.../2024presgeresults.pdf); totals hash OPEN; labels not PIT features",
      "outcome_MIT_Election_Lab": "OPEN \u2014 not in 1976\u20132020 statewide file; county 2000\u20132024 + precinct-2024 sets exist on MIT landing; statewide 2024 cross-check not yet pinned",
      "polls_public_by_cutoff": "OPEN\u2020 \u2014 Marist 2024-06-18 & 2024-08-06 \u2264 T\u221260; 2024-09-10 > T\u221260; Quinnipiac 2024-08-29 HTML+FOR RELEASE PDF \u2264 T\u221260; Pew Sep-9 topline PDF > T\u221260; PollingReport 2024.htm HTTP200; FTE CSV BLOCKED; full national LV inventory NOT frozen",
      "economic_ALFRED_vintages_by_cutoff": "OPEN \u2014 ALFRED is correct vintage tool; per-series coverage matrix not yet audited",
      "ANES_availability_by_cutoff": "BLOCKED \u2014 ANES 2024 Time Series Full Release dated August 8, 2025 (post-election); same-election microdata excluded from T\u221260 PIT",
      "Voteview_vintage_by_cutoff": "OPEN \u2014 need historical vintage or frozen then-available refit; landing reachable",
      "SRP_adjacent_candidate_availability": "OPEN \u2014 M4 feature named in v0.1.1 as trust_fed_gov_precutoff_level; per-cycle pre-cutoff availability not yet proven",
      "eligible_strict_PIT": "UNDECIDED",
      "exclusion_reason": null,
      "evidence_notes": {
        "house_clerk_pdf_verified_utc": "2026-09-10T03:29:29Z",
        "house_clerk_bytes": 608100,
        "no_fitting": true,
        "no_outcome_join": true,
        "polls_pass_utc": "2026-09-10T04:11:59Z",
        "fte_csv_reject": true,
        "marist_pub_dates_le_T60": [
          "2024-06-18",
          "2024-08-06"
        ],
        "marist_pub_dates_gt_T60": [
          "2024-09-10"
        ],
        "pollingreport_page": "https://www.pollingreport.com/2024.htm",
        "polls_pass2_utc": "2026-09-10T12:45:00Z",
        "quinnipiac_pub_dates_le_T60": [
          "2024-08-29"
        ],
        "pew_pub_dates_gt_T60": [
          "2024-09-09"
        ],
        "release_date_proof": "PARTIAL_EXAMPLES"
      }
    }
  ],
  "progress_summary": {
    "cycles_total": 15,
    "cycles_advanced_this_pass": 15,
    "pass2_focus_cycles_with_publisher_release_examples": [
      2016,
      2020,
      2024
    ],
    "dimensions_advanced": [
      "polls: Marist release-date proof extended to 2016 + 2020 (HTML/PDF) in addition to 2024",
      "polls: Quinnipiac 2024-08-29 FOR RELEASE PDF+HTML \u2264 T\u221260 VERIFIED_PARTIAL",
      "polls: Pew 2020-08-13 datePublished \u2264 T\u221260; 2024-09-09 topline still > T\u221260",
      "polls: Gallup 2020 datePublished articles \u2264 T\u221260 (election-adjacent proof class)",
      "polls: PollingReport early-cycle paths 1992/1996 HTTP404 documented",
      "polls: FTE HTML-as-CSV REJECT reconfirmed pass2",
      "eligible_strict_PIT remains UNDECIDED for all cycles (honest)"
    ],
    "still_open": [
      "Complete national LV release\u2264T\u221260 inventory per cycle",
      "Roper membership extraction / redistribution terms confirmation",
      "Publisher release examples for cycles \u22642012 (none frozen this pass)",
      "Per-cycle extracted FEC/House Clerk two-party totals + hashes",
      "MIT dataset exact version hashes",
      "ALFRED series list + vintage coverage matrix",
      "ANES contemporaneous availability for cycles other than 2024 BLOCK",
      "Voteview historical vintage selection",
      "Eligible cycle freeze after PIT audit (requires Claude ACCEPT on protocol)"
    ],
    "gates_preserved": {
      "MODEL_CHANGE": false,
      "FITTING": false,
      "OUTCOME_TESTING": "NOT_YET_AUTHORIZED",
      "eligible_strict_PIT": "UNDECIDED for all cycles",
      "S1_E2_exploratory": "PARKED_by_James_order"
    }
  },
  "verified_vs_open_summary": {
    "verified": [
      "House Clerk outcome PDF archives for all 15 cycles 1968\u20132024",
      "FEC Federal Elections links 1984\u20132020 + 2024 official presidential PDF",
      "MIT statewide presidential catalog coverage 1976\u20132020 (pointer)",
      "MIT 1968\u20131972 out-of-range BLOCK for MIT secondary",
      "ANES 2024 post-election Full Release date (BLOCK same-election)",
      "538 retrospective-average caveat + GitHub averages CSV real-but-not-PIT",
      "HTML-as-CSV / non-CSV FTE reject incident RECONFIRMED (abcnews HTML)",
      "ALFRED vintage tool pointer",
      "Voteview vintage requirement pointer",
      "Marist publisher pages with publication dates (2024 \u2264T\u221260 examples)",
      "Gallup publisher datePublished metadata + historical trial-heat trends landing",
      "PollingReport field-date cycle archives HTTP200 for 2000/2004/2008/2012/2016/2020/2024",
      "Pew dated topline PDF class (2024-09-09 example)",
      "License notes: US gov works; MIT public domain; ANES/Roper/Marist/Gallup/PollingReport/Pew restricted or terms-bound",
      "Marist publisher release dates for 2016-08-05 (\u2264T\u221260) + 2016-09-23 (>T\u221260) + 2020-06-26 (\u2264T\u221260) in addition to 2024 examples",
      "Quinnipiac 2024-08-29 national FOR RELEASE PDF+HTML \u2264 T\u221260",
      "Pew 2020-08-13 datePublished \u2264 T\u221260",
      "Gallup 2020-08-14/17/24 datePublished \u2264 T\u221260 (election-adjacent)",
      "PollingReport 1992/1996 HTTP404 (no early-cycle pages)",
      "USC Annenberg original ASPX Wayback 2012-08-24 \u2264T-60 LV horse-race (pass4 retry)",
      "Quinnipiac 2016-08-25 national LV \u2264T-60",
      "Quinnipiac 2012-07-11 national RV \u2264T-60",
      "Gallup Daily 2008 RV \u00d76 \u2264T-60"
    ],
    "open": [
      "Per-cycle extracted official totals + two-party denominator hashes",
      "MIT dataset exact version hashes / 2024 statewide pin",
      "Release-dated national LV poll archive COMPLETE inventory by cycle at T\u221260 (examples for 2016/2020/2024 only)",
      "Roper iPoll per-cycle extraction under membership",
      "ALFRED series list + vintage coverage matrix",
      "ANES contemporaneous availability (non-2024)",
      "Voteview historical vintage selection",
      "Eligible cycle freeze after PIT audit",
      "Publisher release-date examples for cycles \u22642004 still sparse; 2008/2012 partial only",
      "GQRR USC/LAT Full Crosstabs PDF bytes via Wayback still OPEN"
    ],
    "blocked": [
      "MIT secondary for 1968 and 1972 (outside documented statewide range)",
      "ANES same-election 2024 microdata for T\u221260 features",
      "FiveThirtyEight president_polls_historical.csv as CSV ingest (HTML/abcnews)",
      "HuffPost Pollster API v2 (HTTP404 / unmaintained)"
    ]
  },
  "s1_e2_exploratory": "PARKED \u2014 James order: no new S1/E2 sensors/composites/re-slices; posted ANES/N3 frozen",
  "pass": "pass4_retry_usc_aspx_vintage",
  "eligible_strict_PIT": "UNDECIDED",
  "fitting": false,
  "pass4": {
    "at": "2026-09-10T16:15:00Z",
    "usc_wayback_post_migration_url": "NO_PRE_UPDATE_SNAP",
    "usc_aspx_original_url_wayback": "RECOVERED_le_T60_LV",
    "usc_aspx_sha256": "13c5920a7e51d02587ba170e5393bc54e9bd877fff499a5d32028fe43f4d9e24",
    "new_lv_rows": [
      "QU_2016-08-25_national_LV",
      "USC_Annenberg_LAT_2012-08-23_ASPX_WB"
    ],
    "new_rv_rows_le_T60": [
      "QU_2012-07-11_national_RV",
      "Gallup_2008-08-01",
      "Gallup_2008-08-06",
      "Gallup_2008-08-11",
      "Gallup_2008-08-14",
      "Gallup_2008-08-22",
      "Gallup_2008-08-29"
    ],
    "corrections": [
      "Gallup_110548_trialheat_gt_T60"
    ],
    "gqrr_pdf_wayback": "HTTP404_this_pass"
  }
}
