About the platform

About Legislation Lemur

Legislation Lemur is a civic data platform focused on making the United States Congress easier to explore and understand.

The platform brings together legislation, members, votes, committees, congressional activity, bill summaries, and reference resources in a single experience designed around clarity, transparency, and usability.

Legislation Lemur does not provide partisan advocacy or tell users what to think. Official source data, normalized information, derived signals, and AI-assisted content are presented with clear distinctions so users can understand what they are looking at and where it came from.

Every feature follows the same principle: reduce complexity without losing the context behind the underlying information.

Why it exists

Public information should be easier to navigate.

Government information is public, but it is often difficult to navigate.

Legislative text can span hundreds of pages. Congressional activity is distributed across multiple systems and sources. Many existing tools assume familiarity with legislative procedures and terminology.

Legislation Lemur was created to lower those barriers through thoughtful design, neutral presentation, better organization, and accessible explanations.

The goal is not to tell people what to think. The goal is to make it easier to see what Congress is doing, understand the surrounding context, and continue to the underlying source material when more detail is needed.

The name "Lemur" reflects curiosity, persistence, and exploration—qualities shared by both the data work behind the platform and the civic mission it supports.

Current features

What you can explore today

  1. Search and explore bills, members, and congressional committees
  2. Filter legislation by topic, status, chamber, committee, date, bill type, and other legislative attributes
  3. Explore representatives and senators, including sponsored and co-sponsored legislation, voting activity, and congressional relationships
  4. Browse committees and subcommittees and explore how they connect to members and legislation
  5. Read official and AI-assisted bill summaries with clear source distinctions
  6. Use Impact and Momentum signals to discover bills with broader legislative footprints or recent activity
  7. Review congressional voting activity, legislative actions, and recent developments
  8. Use the Reference Hub for congressional terminology, data guidance, methodology, and state voting resources

Core legislative data is refreshed regularly from official congressional and public data sources. Normalized information, derived signals, and AI-assisted content are designed to improve discovery and accessibility while preserving source transparency.

Open Reference Center
Recent additions

A broader view of Congress.

Recent releases have expanded Legislation Lemur beyond basic bill and member lookup into a more connected congressional exploration experience.

  1. Expanded committee and subcommittee data and navigation
  2. Improved search and filtering across bills, members, and committees
  3. Bill Impact and Momentum signals designed to support discovery without predicting legislative outcomes
  4. A redesigned Reference Hub with congressional guidance and state voting resources
  5. Continued improvements to bill, member, committee, and search experiences across desktop and mobile
Bill summaries

Readable summaries, with the source made clear.

Legislation Lemur uses both official congressional summaries and clearly labeled AI-assisted summaries to make complex legislation easier to navigate.

When an official summary is available, it remains the authoritative summary source. AI-assisted summaries may be used to help organize and explain available legislative information in a more accessible format.

AI-assisted summaries are a starting point, not a replacement for primary sources, official legislative language, or legal analysis.

More information about summary provenance, source data, and methodology is available in the Reference section.

Summary sources and methodology
How it works

Built around official data, normalized views, and readable presentation.

  1. Collect legislative and congressional information from official sources and structured public datasets
  2. Normalize bills, members, votes, committees, relationships, and legislative activity into consistent application views
  3. Refresh and validate data through automated update pipelines
  4. Precompute common views and relationships for fast, stable exploration
  5. Independently validate important derived calculations and distinguish them from source-provided values
  6. Present the resulting information through interfaces designed for readability, discovery, and source traceability

Legislation Lemur is built with Next.js, server-rendered React, PostgreSQL-backed data services, and automated data pipelines designed to prioritize reliability, transparency, and maintainability.

What's next

Expanding carefully, with neutrality and readability intact.

Legislation Lemur continues to expand around a simple goal: make congressional activity easier to discover, understand, and follow without replacing the underlying public record.

New capabilities are introduced incrementally so search quality, performance, data integrity, and transparency can improve alongside the feature set.

  1. Smarter search with stronger natural-language interpretation, assisted filters, and relevance improvements
  2. Expanded topic discovery and connections across bills, members, committees, votes, and legislative activity
  3. Congress-wide dashboards and additional tools for understanding activity over time
  4. Topic tracking, saved monitoring, and notification tools for legislation, members, committees, and issues
  5. Additional transparency and methodology tools for derived metrics and application data
  6. Continued expansion of civic and election reference resources where reliable public data is available