Here is interactive visualization of Election & Public Opinion by PIIM. It’s an interactive display of Red / Blue state. Election data goes all the way back to 1789, the first presidential election.

This application will familiarize you with the voting process of the United States. Explore how public opinion and “creative democracy” has such a persuasive effect on the country; and how just a handful of votes may cause significant impact.
Historical background, the current voting process, and informative visualization of every major election are available. The Issue and policy tools permit some creative “What if” experiments in redrawing an election based on subtle alternations to historical outcomes.