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lzinga

US Government Open Data MCP

congress_house_votes

Retrieve House of Representatives roll call vote results with member-level party breakdown from 1990 to present. Cross-reference with Senate votes, lobbying data, and economic impact analysis.

Instructions

Get House of Representatives roll call vote results with member-level party breakdown. Primary source: Congress.gov API (118th-119th Congress); falls back to clerk.house.gov XML for older congresses. Coverage: 1990 to present. Use year param for historical votes. Cross-reference with: congress_senate_votes (same bill's Senate vote), FEC (congress_member donors via fec_candidate_financials), lobbying_search (who lobbied on the bill), FRED (economic impact 1-3 years after passage). For Senate votes, use congress_senate_votes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
congressNoCongress number (default: current). Used with session to determine year.
sessionNoSession (1 or 2). Default: current session
yearNoCalendar year (e.g. 2024). Overrides congress+session if provided.
vote_numberNoSpecific roll call vote number. Omit to list recent votes.
limitNoMax results when listing votes (default: 20)
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