As I write, nearly 80 percent of North Carolina precincts have reported results, and Republican Thom Tillis is still clinging to a 50,000-vote lead over Democratic incumbent senator Kay Hagan. Why aren’t Tar Heel Republicans jumping up and down in elation just yet? Because most of Mecklenburg County, the state’s most populous, has yet to report in. It’s been trending blue in recent elections, although it’s worth noting that several of the most-Democratic precincts have already been counted. Tillis currently represents part of the northern end of the county in the state house of representatives. It would be ironic if late-breaking results from Mecklenburg flip the race back to Hagan.