Information Sources
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- Maplight - Contributions Map 183138
- 'Complete Attack on Our Democracy': FEC Rules Foreign Corporations Can Donate to Influence US Elections - Common Dreams 02.11.21 260078
- Political Advertising in 2016: The Presidential Election as Outlier? - De Gruyter 22.02.17 183139
- Nearly Half Of All Super-PAC Money Comes From Fifty People - Young Turks 4/16 183140
- Report: After Citizens United: The Story in the States - Brennan Center 10/14 183141
- Report: Do Corporations & Unions Face the Same Rules for Political Spending - Demos 07/14 183142
- Documentary - The Money Lobby (2013) ! 183143
- Grading the nation: How accountable is your state? - CPI 2012 183145
- Campaign Disclosure Project - Grading State Campaign Finance Disclosure Laws (2008) 183146
- Wikipedia - Campaign Finance in the United States 183147