MapLight's Core Work
MapLight has three key strengths that, collectively, are not possessed by any other transparency or accountability organization:
Money and Politics Data Set
Only MapLight produces a unique database combining lawmakers’ votes, groups supporting and opposing legislation, and campaign contributions—a database specifically developed to serve increased public accountability. A portion of the data in MapLight’s database is uniquely collected by us and includes information about the groups supporting and opposing legislation.
MapLight's Money and Politics Data Set is an easy-to-access, downloadable database featuring MapLight-enhanced Federal Elections Commission campaign finance data and available for free public use. The data set includes all federal contributions, independent expenditures, and candidate and committee totals, updated regularly with the most current data from the FEC. Citizens, journalists, and programmers can now view, search, sort, filter, and visualize (with charts, line graphs, bar graphs, scatter plots, and timelines) federal campaign contributions using Google Fusion Tables.
Our data can also be merged with outside databases, and visualizations can be easily embedded into blogs, media sites, and more. We are excited to see what the web community builds with this continually-updated public data. The complete MapLight Money and Politics Data Set can also be downloaded or accessed via API for free public use in websites, widgets, and apps.
Our support and opposition database includes which interest groups, companies, and organizations support and oppose key bills in Congress. For each bill, our in-house research team uses public record sources, like Congressional hearing testimony, news databases, and trade associations’ websites, to determine a bill’s supporters and opponents.
work alongside numerous groups who share an interest in
transparency and/or political accountability. Most of these
groups focus exclusively on tracking or providing public
access to various forms of political inputs, such as data
sets of campaign contributions or lobbying. Only
MapLight is focused on connecting these political inputs
to political outputs, such as the outcome of a
particular vote, to systematically uncover and publicize
instances of special interest influence.
develops our data, tools, and research services
specifically to help journalists and nonprofit groups
have public accountability impact. We offer custom research
at no cost, provided that the resulting
data is used for content that is free to the public.
Our transparency tools and research services continue to be used by an ever-wider network of accountability actors to craft bold, urgent calls for change and reform.
Mobile Phone App
Learn more about the impact MapLight has had so far.