About UltraVires

People & Liberty Tracker — measuring the delta between governmental authority and individual liberty.

Philosophy

UltraVires (Latin: beyond the powers) tracks people-related regional status — the legislative and judicial deviations from past norms that shape daily life across US jurisdictions. This is not an ideological project. It is a measurement project: are governments staying within their authority, or exceeding it? Are individual liberties expanding, contracting, or shifting territory-by-territory?

Every law passed, every ruling handed down, every regulation promulgated represents a deviation from the status quo ante. UltraVires maps these deltas — quantifying the direction and magnitude of change across federal, state, and local jurisdictions. The result is a live picture of how the relationship between people and government is evolving in real time.

Data Sources

Every layer is one feed, and every feed above is one layer. Curation rules are published in the repository (shared/curation.json); records they exclude are preserved with their reason in shared/quarantine/ rather than deleted, and each layer's data file records how many were excluded.

Served window. One layer is served as a rolling window rather than in full. GovTrack introduces 30–36 bills a day, so the Legislation layer only grows: the merge is additive and nothing is ever dropped, which measured out at roughly 12,000 bills and 5 MB per year, forever, on a layer that loads by default. Legislation therefore serves the most recent 90 days (~3,000 records at that rate) and every older bill is written to a monthly archive beside it (api/data/_archive/legislation/) — the same records, one file per month, de-duplicated, nothing deleted. The served file states its own window and the size of the archive, and each layer's info card reports what the server serves. The window is measured from the newest bill on file, so a quiet month never ages the layer out. Recovering a window into the served layer is the recorded one-liner in docs/legislation-coverage.md.

What We Track

Features

Technology

Leaflet Python GovTrack API ViewerEngine RSS GH Actions

Contact

[email protected]

Privacy

UltraVires does not collect personal data. No cookies, no tracking scripts, no analytics. All data is sourced from public government feeds.