Data sources
Every number on this site traces back to one of these sources.
Data as of 2026-06-26 · Source: U.S. Senate roll-call records
This project draws on 4 sources. The U.S. Senate’s official roll-call records are the backbone — they are the primary source for all 1542 votes. The others provide optional context or attributed third-party analysis. The current dataset was generated on 2026-06-26 and covers the 4 congressional sessions of Fetterman’s tenure.
U.S. Senate roll-call votes (senate.gov)
Primary source for every voteThe official Legislative Information System roll-call XML. This is the authoritative record of how each senator voted and the source cited on every vote page.
https://www.senate.gov/legislative/LIS/roll_call_lists/vote_menu_119_1.htm ↗Congress.gov API
Bill context (optional enrichment)When available, used to add bill titles, sponsors, and policy areas. The site is built to work fully without it; where context is unavailable, fields are left blank rather than guessed.
https://www.congress.gov/ ↗GovTrack
Third-party analysis (attributed)Cited for comparative measures such as ideology score and missed-vote ranking. These figures are GovTrack’s analysis and are labeled as such wherever they appear.
https://www.govtrack.us/congress/members/john_fetterman/456877 ↗unitedstates/congress-legislators
Member identifier crosswalkThe canonical open dataset mapping legislator identifiers (Bioguide, LIS, GovTrack), used to confirm Fetterman’s identifiers.
https://github.com/unitedstates/congress-legislators ↗Public-domain notice
Roll-call vote data produced by the U.S. Senate is a work of the federal government and is in the public domain. This site reorganizes and presents that public record; it does not alter the underlying facts.