Source

• Opensecrets.org - Money in Politics Data

  Offsite — Description ‘Your Guide to Money in US Elections’. Includes databases covering money spent on: 527s Contributions Lobbying PACs Travel Also has a ‘revolving door’ database: > Track the movements of well-connected individuals between government and private interests in this searchable database of more than 6,400 people. See which influential lobbyists and firms ...