For anyone wondering, here in Michigan, blue counties have fully vaccinated about 10% more of their population than the red counties, but the swing counties are actually doing the best so far. 
(Note: I'm dividing the total number of doses by 2, then dividing that by the TOTAL population, not just those 16+. J&J is only around 3% of the total so it shouldn't move the needle much).
Here's a scatter plot graph of all 83 counties. I dont' know how to vary the dots by population size in Excel, however; the handful of counties on the right side actually have more people living in them than the flurry of dots on the left side.
Here's an improved version. The Red/Blue divide isn't overwhelming (yet) but it's definitely significant.
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