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Data

MapLight Wisconsin combines three data sets:

Contributions: Campaign contributions given to each member of the Wisconsin State Legislature. We currently include contributions made since January 1, 1993 to legislators who have served in the 2009-2010 and 2011-2012 sessions. (Source: Wisconsin Democracy Campaign)

Votes: How each member of the Legislature voted on every bill. (Source: Wisconsin State Legislature website)

Support/opposition: Which interest groups and companies support and oppose key bills. (Source: MapLight research team, Wisconsin Government Accountability Board)

The data provided on the MapLight Web site is accurate as best as can be determined.

About our data

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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