Cook Political Report: independent, online newsletter that analyzes elections and campaigns for the US House of Representatives, US Senate, Governors and President as well as American political trends.

Politico Pro: a comprehensive database providing legislative and regulatory insights, data tools, and resources for policy research. You can find news by category or do a keyword search.

Factiva: aggregates articles from thousands of national and local newspapers, magazines, trade publications and transcripts. Select 'all subjects' and choose Political/General news.