About.com, US Politics
A clearing house for information on political issues and events, providing background on important issues such as elections and campaigns, tax legislation, foreign policy, abortion, electronic democracy, anti-terrorism legislation and prescription drug benefits.
http://uspolitics.about.com/

RealClearPolitics.com
Publishes the best commentary, news, polling data, and links to important resources from all points of the political compass and covering all the important issues of the day. Includes election news, political news and analysis, presidential election news, and more.
http://www.realclearpolitics.com/