Today we look at a piece that focuses on my native (and favourite) state: the Commonwealth of Pennsylvania. (Along with Virginia, Massachusetts, and Kentucky, we self-identify as a commonwealth and not a state.) FiveThirtyEight examines how Pennsylvania and its shifting political preferences might just be the key (get it? keystone) to the election for both candidates. The crux of the article can be seen in the map, but the whole piece is worth the read. If only because it mentions Pennsyltucky by name.
Credit for the piece goes to David Wasserman.