Official campaign contribution database, FEC filings, etc.

Search, view, and download submitted political organization filings

"Nonpartisan, independent and nonprofit, OpenSecrets is the nation's premier research group tracking money in U.S. politics and its effect on elections and public policy. Our mission is to track the flow of money in American politics and provide the data and analysis to strengthen democracy. Our vision is for Americans to use this knowledge to create a more vibrant, representative and accountable democracy."

"The Database on Ideology, Money in Politics, and Elections (DIME) provides a general resource for the study of campaign finance and ideology in American politics. The database was developed as part an on-going effort to construct a comprehensive ideological mapping of political elites, interest groups, and donors...The current database contains over 500 million itemized political contributions made by individuals and organizations to local, state, and federal elections covering from 1979 to 2022."