There’s plenty of creative cartography going on at the moment, as people render and rearrange North America along political lines:
- We’ve got Canada 2.0, very promising for trips to Baha.
- A gradiated view representing voting trends more subtly. Here’s the same one with contour lines for population.
- Dave Pollard has an analogous map of Canada. In his comments on that entry, I take Dave to task for characterizing right-of-centre parties in Canada as "conservative/christian".
- This one just shows the counties which switched allegiance between 2000 and 2004. What’s the regional name for the chunk of the US around Missouri and Kentucky? The Heartland, maybe?
UPDATE: Augie points out this great map that (presumably) reflects voting trends based on population density. The conclusion: if you live in a big city, you’re likely to have voted Democrat.
DarrenBarefoot.com 
Haha! Canada 2.0 is great. Thanks for posting these, the princeton maps are particularly informative.
My current favorite political map:
Electoral Map to Scale
I like this one:
http://www.buzzflash.com/contributors/04/11/con04485.html
Hey! In Canada 2.0, Vancouver Island belongs to the United State of Texas!
My favorite:
http://www.esri.com/industries/elections/graphics/results2004_lg.jpg
I was just looking at the map of which states switched. If I don’t miss my guess, the first county here in NJ that switched to the Republican from the Democrat is home to a town named “Red Bank.” (For those of you who are Kevin Smith fans, that’s where his comics shop is.)