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Congress.gov API
Official congressional member and legislative metadata service maintained by the Library of Congress.
Library of Congress · Congress.gov API
Source metadata
Publisher
Library of Congress
Directory updated
April 24, 2026
What Ballot Clarity uses it for
Federal office context, committee membership, and legislative activity summaries on congressional representative pages.
Geographic scope
United States federal offices
Review note
Ballot Clarity reviews this federal enrichment layer when Congress member matching or committee context attachment changes.
Key limitations
- Applies only to federal congressional pages.
- Congress context does not replace official election authorities for ballot verification.
Attached note
Official federal legislative metadata used when a congressional page can be matched confidently.