Sources
The public records behind every page, and how often we check them.
| Information | Source | Updated |
|---|---|---|
| Current members, terms, offices, committees | unitedstates/congress-legislators | Nightly |
| Official portraits | Government Publishing Office, via unitedstates/images (public domain) | Nightly |
| House roll-call votes | Office of the Clerk, U.S. House | Nightly |
| Senate roll-call votes | U.S. Senate | Nightly |
| Bills, summaries, sponsors, actions | Congress.gov API (Library of Congress) | Nightly |
| Campaign finance | Federal Election Commission (OpenFEC API) | Nightly |
| District boundaries | U.S. Census Bureau cartographic boundary files | When published |
| ZIP-to-district relationships | U.S. Census Bureau relationship files | When published |
| Population, income, rent, internet access | American Community Survey 5-year estimates | Yearly |
| Street-address district lookup | U.S. Census Bureau Geocoder | Live |
| State legislators (address lookups) | Open States / Plural | Live |
| Personal financial disclosures | House Clerk · Senate eFD | Linked directly |
| Office expenditures | House Statement of Disbursements · Secretary of the Senate | Linked directly |
Each claim on the site links to its specific record. If a link is broken, please let us know.
Last updated Oct 27, 2026.