The colors of the American electoral map
2008 was holograms, this election CNN have given Wolf Blitzer the Empire State Building to play with.
It’s another example of this very recent solidifying of the designated colors for the two main parties.
As a European having the right-leaning Republicans represented by red and the left-leaning Democrats represented by blue seems counterintuitive.
More about the history of it can be found in this article on the Smithsonian website.