A picture is all this post really needs, so here it is, from the special election for a congressional seat in Pennsylvania yesterday.
As you can probably tell, there’s not a lot of red on that map. A district that Trump won by 20 points a year and a half ago has now gone to a Democrat.
One theme of this site is whether all politics is local. This is a prime case study of that question, and your answer depends on which way you spin it.

Recently Mayor Pro Tem, Ted Mohn, 