Last updated: February 22, 2026.
FederalVoice cites source systems used to produce profile metrics and civic analytics.
Government Data APIs
- Congress API v3: https://api.congress.gov/
- FEC Open API: https://api.open.fec.gov/developers/
- Congress.gov bills and roll-call detail: https://www.congress.gov/
- U.S. Senate roll-call lists: https://www.senate.gov/legislative/LIS/roll_call_lists
Reference Feeds Used in Data Pipelines
- Voteview member ideology CSV: https://voteview.com/static/data/out/members/HSall_members.csv
- GovTrack API (selected fallback metadata): https://www.govtrack.us/api/v2
Local Data Products on FederalVoice
- Profile search index:
/index.json - Member activity snapshots:
/data/member-activity/*.json - Vote detail snapshots:
/data/vote-details/*.json - Shared vote-member index:
/data/vote-member-index.json
Notes on Coverage
- Coverage and detail can vary by office and historical period.
- Some historical profiles use curated local overrides when upstream APIs cannot resolve a Bioguide ID.
- Empty fields are retained to avoid implying data that is not available.