Source standards

Sources we cite

Snippet Votes builds every briefing from a positive-qualified source list. We favor primary documents, official government records, peer-reviewed research, and nonpartisan institutions. Below are the source types we trust, with a few example publications in each.

Government sources

Tier 1

Official federal, state, and local government domains. These are primary sources for legislation, court records, agency rules, and public data.

  • congress.gov

    Federal legislation and voting records

  • crsreports.congress.gov

    Congressional Research Service reports

  • supremecourt.gov

    U.S. Supreme Court opinions

  • uscourts.gov

    Federal court records and opinions

  • archives.gov

    Foundational documents and records

  • census.gov

    Population and demographic data

  • bls.gov

    Labor and economic statistics

  • cdc.gov

    Public health data and guidance

State and local government

Tier 1

State legislatures, state courts, municipal codes, and the national associations that maintain authoritative directories of state and local government.

  • ncsl.org

    National Conference of State Legislatures

  • openstates.org

    State bill text and voting records

  • legiscan.com

    Legislation tracking across all 50 states

  • municode.com

    Municipal codes and ordinances

  • ncsc.org

    National Center for State Courts

  • naco.org

    County government data and directories

Election administration

Tier 1

Federal and state election authorities plus the nonpartisan bodies that certify, audit, and document election procedures.

  • eac.gov

    U.S. Election Assistance Commission

  • fec.gov

    Federal campaign finance filings

  • nass.org

    National Association of Secretaries of State

  • verifiedvoting.org

    Voting equipment and audit records

  • electionlab.mit.edu

    MIT Election Data and Science Lab

  • ballotpedia.org

    Nonpartisan elections encyclopedia

International organizations

Tier 1

Multilateral institutions, global development banks, and international bodies that publish cross-country data and policy analysis.

  • worldbank.org

    Global development data and research

  • un.org

    United Nations reports and treaties

  • oecd.org

    International economic and social statistics

  • imf.org

    Global economic outlook and financial data

  • who.int

    World health data and guidance

  • europa.eu

    European Union legislation and data

Peer-reviewed journals

Tier 1

Scholarly publishers and preprint servers whose articles go through formal peer review or editorial vetting.

  • nature.com

    Science and policy research

  • science.org

    Multidisciplinary academic journal

  • thelancet.com

    Medical and public health research

  • jamanetwork.com

    Health policy and clinical research

  • pnas.org

    National Academy of Sciences journal

  • pubmed.ncbi.nlm.nih.gov

    Biomedical literature index

Academic research

Tier 1

University-affiliated research centers, think tanks, and open academic aggregators that publish working papers and policy analysis.

  • brookings.edu

    Public policy research

  • rand.org

    Nonpartisan policy research

  • nber.org

    Economic working papers

  • pewresearch.org

    Survey and demographic research

  • kff.org

    Health policy analysis

  • urban.org

    Social and economic policy research

  • hks.harvard.edu

    Harvard Kennedy School research

Public-service journalism

Tier 2

News organizations with strong editorial standards, global bureaus, or public-service missions. We use them for context, never as the sole source.

  • reuters.com

    International wire service

  • apnews.com

    Associated Press

  • npr.org

    Public radio reporting

  • bbc.com

    British Broadcasting Corporation

  • pbs.org

    Public television journalism

  • csmonitor.com

    Christian Science Monitor

Local and statehouse journalism

Tier 2

Nonprofit statehouse newsrooms and public-media stations that cover state and local government with named bylines and corrections policies.

  • texastribune.org

    Texas statehouse reporting

  • calmatters.org

    California policy and budget coverage

  • spotlightpa.org

    Pennsylvania accountability reporting

  • stateline.org

    Cross-state policy reporting

  • statesnewsroom.com

    Nonprofit statehouse network

  • kqed.org

    Public media civic coverage

Investigative reporting

Tier 2

Outlets known for deep-dive reporting, public records, and document-based accountability journalism.

  • propublica.org

    Nonprofit investigative journalism

  • icij.org

    International Consortium of Investigative Journalists

Industry research

Tier 3

Commercial consulting and professional-services research. We cite these sparingly and only with independent corroboration.

  • mckinsey.com

    Business and public-sector research

  • deloitte.com

    Industry analysis and surveys

  • bcg.com

    Boston Consulting Group insights

  • pwc.com

    Professional services research

What the tiers mean

We score every source on a three-tier scale. Tier 1 sources are primary authorities or institutions with rigorous review. Tier 2 sources are reputable and independent. Tier 3 sources are cited with caution and corroborated by a stronger source.

Tier 1

Primary government, international bodies, peer-reviewed journals, and established academic research centers.

Tier 2

Public-service and investigative journalism with strong editorial standards and document-based reporting.

Tier 3

Commercial or industry research used only for context and always paired with independent corroboration.

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