Voting

The 1948-2002 National Election Studies provides tables and graphs that display the ebb and flow of public opinion and electoral behavior and choice in American politics since 1948.

Maps of election results on a national and state by state level.

Official vote counts for federal elections from the official sources among the various states and territories.
Clerk of the House of Representatives. 1920-

Animated maps showing changes over time in voting patterns. From the University of Richmond.