Data
Take the whole thing.
Every position this site records, as a spreadsheet or as JSON. Free to republish, including commercially, under CC BY 4.0. Credit Project Curia and it is yours. Nothing to sign up for, no key to request, and no need to ask. The site checks automated sources on their documented schedules.
recorded yes votes
recorded no votes
tracked measures that reached a vote
The files.
- votes.csvStart here
Every member's position on every tracked measure. One row per member per bill their chamber can act on, carrying the 27 roll calls, the question that was actually put in each, and a link to the official record. This is the one with a real no in it.
Source: Congress.gov bill records and House and Senate roll calls. Checked during the scheduled site refresh; each roll call keeps its own official link.
Cite: Project Curia, votes.csv, https://projectcuria.com/data/votes.csv, CC BY 4.0.
The same positions as structured JSON, plus each bill's status, sponsor, cosponsor count, and every roll call held on it.
Source: Congress.gov bill records and House and Senate roll calls. Checked during the scheduled site refresh.
Cite: Project Curia, issues.json, https://projectcuria.com/data/issues.json, CC BY 4.0.
Cosponsorship on the 7 reforms, by member and by reform. Read the caveat below before using this one.
Source: Congress.gov sponsorship records. Checked during the scheduled site refresh.
Cite: Project Curia, scores.json, https://projectcuria.com/data/scores.json, CC BY 4.0.
The roster: every sitting member, party, state, district, chamber, and contact details.
Source: unitedstates/congress-legislators. Checked during the scheduled site refresh; cross-checked against chamber rosters.
Cite: Project Curia, members.json, https://projectcuria.com/data/members.json, CC BY 4.0.
The data allows cross-origin requests, so you can pull any of it straight into a notebook or a chart without a proxy.
Your state, as a spreadsheet.
One state's whole delegation, every member's evidence across all 7 catalog reforms, plus a separate tally across the 6 reforms with current bills. Each position includes its bill number. Pick a state and it downloads.
- AlabamaCSV
- AlaskaCSV
- American SamoaCSV
- ArizonaCSV
- ArkansasCSV
- CaliforniaCSV
- ColoradoCSV
- ConnecticutCSV
- DelawareCSV
- District of ColumbiaCSV
- FloridaCSV
- GeorgiaCSV
- GuamCSV
- HawaiiCSV
- IdahoCSV
- IllinoisCSV
- IndianaCSV
- IowaCSV
- KansasCSV
- KentuckyCSV
- LouisianaCSV
- MaineCSV
- MarylandCSV
- MassachusettsCSV
- MichiganCSV
- MinnesotaCSV
- MississippiCSV
- MissouriCSV
- MontanaCSV
- NebraskaCSV
- NevadaCSV
- New HampshireCSV
- New JerseyCSV
- New MexicoCSV
- New YorkCSV
- North CarolinaCSV
- North DakotaCSV
- the Northern Mariana IslandsCSV
- OhioCSV
- OklahomaCSV
- OregonCSV
- PennsylvaniaCSV
- Puerto RicoCSV
- Rhode IslandCSV
- South CarolinaCSV
- South DakotaCSV
- TennesseeCSV
- TexasCSV
- the U.S. Virgin IslandsCSV
- UtahCSV
- VermontCSV
- VirginiaCSV
- WashingtonCSV
- West VirginiaCSV
- WisconsinCSV
- WyomingCSV
Two things to get right.
Not on record is not opposition. Across the 7 reform records, the only signal is cosponsorship, which can record a yes and cannot record a no. A member who has not cosponsored a bill has not been recorded opposing it, and Congress rarely votes on these reforms, so there is usually nothing to record a no with. There is no opposes value anywhere in the reform data. If you publish these members oppose X on our numbers, the correction lands on us, and the site stops being useful to every other reporter.
One catalog item has only prior-Congress bills. It remains in the export as historical evidence, but it is excluded from the 6-reform current-bill tally.
A cloture vote is not a vote on the bill. Some of these roll calls are cloture or motion-to-proceed votes. Cloture limits debate; a motion to proceed takes up a measure for consideration. Neither decides whether the measure passes. A senator who votes against cloture has not voted against the bill. votes.csv carries the verbatim question and a vote_is_on_passage column so you can tell them apart. Check it before you report a no as opposition.
Where it comes from
Bills, sponsors, and cosponsors come from api.congress.gov. Roll-call votes come from the Clerk of the House and the Senate's own records. Discharge-petition signatures come from clerk.house.gov. The roster comes from unitedstates/congress-legislators. Every row carries the bill number it came from, so any cell can be checked against the original record rather than taken on our word.
A roll-call vote and a cosponsorship are public records, and they were never ours to own. What the license gives away is the work of compiling them, so that nobody has to wonder whether they are allowed to use it.
Last site refresh: October 12, 2026. The data catalog documents each dataset's source and update schedule. If a number looks wrong, it might be. Write to [email protected] and we will fix it or show you the record it came from.