About this data: The Power Players project used campaign finance data from all 50 states and the Federal Election Commission to find the top individual donors from each participating state. This data includes money donated directly to candidates and committees but does not include so-called "dark money" that is given to outside spending groups. At the state level, this data includes money donated from individuals to candidates, party committees and ballot issues but not to other groups because the data has not been vetted for accuracy. The date range included is from Jan. 1, 2011 through June 30, 2014 for federal data and Jan. 1, 2011 through various dates for the 50 states, depending on individual states' filing deadlines and systems.

Data sources: State data comes from individual states' election commissions and is compiled, standardized and made available by the National Institute for Money in State Politics (FollowtheMoney.org). Federal data from the Federal Election Commission was standardized and made available by the Center for Responsive Politics (Click here to download the data used to build this app.