The 2012 national election
Scary how the demographics skew so much in terms of race. And how center city and suburban voters trend Democrat. When you look at a red/blue map of the entire country, it looks like bits of blue in a sea of red, but if its weighted by population, its a bit more equal. The Patchwork Nation site looks at the demographics in a more fine-grained manner. See "Why Obama Won: Explaining the Patchwork Vote" from WNYC.
I was worried that I was going to have to reprint The Stranger's--Seattle's leading alternative weekly--screed after the 2004 election, which was very bitter over the results, and how cities and suburbs were trumped by more exurban voters. See "The Urban Archipelago: It's the Cities, Stupid."
With regard to Virginia, the city/suburban vote definitely favored Tim Kaine in the Senate race over George Allen, even, surprisingly, in the Hampton Roads area.