Closest gubernatorial races by percentage?

[BBD]

South Dakota may be up there. Billie Sutton seems like the perfect dark horse candidate for this environment, despite the headwinds of trying to get elected with a (D) next to his name in a state that's continuously voted (R) for gubernatorial elections since the 80s. He is underrated as hell, if the lack of overflowing fawning media articles signifies anything. Remember Ojeda - different circumstances, definitely, but he barely got any attention in 2017, despite his fair chance of winning being known since he announced, and the articles only started flooding in once the national media zeroed in on the teacher/service personnel strikes and his role in it. So, a similar situation being unlikely in South Dakota, Billie Sutton will likely remain under the radar till November, when we get the final results.