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MapLight - Money and Politics
Money and Politics: Illuminating the Connection
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Press Kit

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Frequently Asked Questions

Center for Responsive Politics Methodology

National Institute of Money in State Politics Methodology

About our data

Center for Responsive Politics
Center for Responsive Politics
NIMSP
Wisconsin Democracy Campaign
Read the details about our data sources and methodology. Data refers to direct contributions to the campaign committees of elected legislators. For example, contribution totals exclude contributions to party committees such as the RNC or the DNC and exclude contributions made to individuals that did not win their election.
  • For U.S. Congress, contributions data provided by the Center for Responsive Politics (OpenSecrets.org) and legislative data provided by GovTrack.us.
  • California contributions data provided by the National Institute on Money in State Politics (FollowTheMoney.org).
  • Wisconsin contributions data provided by the Wisconsin Democracy Campaign (wisdc.org).
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  • MapLight
  • Core Work
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Press

  • In The News
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Get Data

  • California Money and Politics Data Set
  • Federal Money and Politics Data Set
  • Bill Positions API

Get Updates

  • Blogs and RSS