Like Virginia, North Carolina does not generally vote Democratic. In 2012, it was the only swing state of that election that Mitt Romney won.
Right now, polls are constantly going back and forth between Trump and Clinton, and it’s hard to tell who will carry the Tar Heel State. Both won their primaries, and there was a close number of primary voters for both the GOP and the Democrats, with not even a difference of 10,000 voters. This state will be one of the more competitive swing states in its election.