New York State Statistical Yearbook
Voter registrations, political party enrollment, & votes cast in presidential election by county (borough).
CQ Press: Political Reference
Info on congress, voting & elections, and other political information. Federal level.
Research Guides for Government Documents @ Columbia
Federal Election Commission
The FEC administers and enforces the Federal Election Campaign Act (FECA), which governs the financing of federal elections. Campaign finance information is available, through the Disclosure Data Search, searchable by individual contributors, committee contributors/recipients, and candidate name.
Follow the Money
Database of campaign money on state-level elections and public policy.
Campaign Finance Guide (Columbia Libraries)