Washoe County, in which I live, is under the political microscope at the moment. Sean at FiveThirtyEight.com reports that Democratic registrations may overtake Republican ones by Election Day, and the New York Times has a profile of Washoe as a swing county:

Nevada is divided in large part between rural and urban voters, newcomers versus old-timers, the contours of the political discussion formed by growth, energy and immigration. While the voters in the rural area of the state are almost certain to go for Mr. McCain, and Mr. Obama is seen as having an advantage in southern Clark County — home to Las Vegas — Washoe County is widely considered the place that could tip the state one way or the other.