I was wondering which counties have been the closest to their state and even national results for the major party candidates. I ask this since living in Franklin County (Columbus), OH, we tend to be somewhat predictive of the overall Ohio outcome (even though we seem to overall skew more Democratic, though nowhere near as much as Cuyahoga or Lucas counties).
Columbus metro is the swing region, but that includes Delaware, Licking, and Madison counties as well as a few others I think that balance out Franklin's 20% Dem margin. As Columbus lurches more and a more Dem, that too will ebb though.