This is old news now,

This is old news now, but take a look at this Election 2000 map of presidential vote by county. It’s pretty enlightening: The Mathematics of a Tie Election. The actual map of interest is partway down the page. It’s an almost perfect urban/rural split, with most major population centers going for Gore. As they say on the site: Of the 40 largest metropolitan areas, only Phoenix, Dallas, San Diego, Tampa Bay, Salt Lake City, and Indianapolis went for Bush. Take a close look: not too many Gore votes in Wyoming. You can also see how the rural areas that went for Gore have a strong minority presence. The banks of the Mississippi was solid Gore territory right through the deep south.