Library: Elections: Campaign Finance

Election Finance - U.S.

Open Secrets
From the nonpartisan, independent and nonprofit organization Center for Responsive Politics. The site aims to be "the most comprehensive resource for federal campaign contributions, lobbying data and analysis."
more...less...
Create a MyOpenSecrets account to track funding/contributions and spending by race, candidate, PAC, industry or 527 committee.
Federal Election Commission Campaign Finance Data
"See how candidates and committees raise and spend money in federal elections."