The county-level vote shares in 2017 and 2021 are strongly correlated, but the plot makes it immediately clear from all the points that are above the diagonal line that the Democratic vote share was larger in most counties compared to 2017. Statewide, the share of the vote won by the Democratic candidate increased from 47.7 percent to 49.5 percent, which is nearly a two point swing from 2017. This seems to affirm the notion that Democrats’ may have overachieved, not under-performed, in the state in 2021.
Despite the New York Time’s pronouncement, the Republican Supreme Court candidate won by one percent, not nearly three. Further, while Biden won the state by 1.2 percent, the Republican congressional candidates actually carried the total Congressional vote in the state by 1.2 percent (50.6 to 48.4) in 2020. I’m not suggesting which of these is the better comparison, but referencing the generic ballot is normally about expected Congressional outcomes. If that’s the case, the Republican performance was about the same as it was in 2020.
If we are thinking about the implications of 2021 for the next election, seeing what happened in the three counties in the state that voted twice for President Obama and who then voted for President Trump in 2016 (Erie, Luzerne, and Northampton, which are labelled on the plot) could offer some clues. Two of the state’s three Obama-Obama-Trump counties returned to Biden in 2020 and stayed with the Democratic Supreme Court candidate in 2021. The Democratic share of the vote actually increased in each of these three counties compared to 2017.
Bucks County, singled out as an augur of the suburban voter for 2022 and beyond by Politico’s haruspex, yielded almost exactly the same share of its vote to the Democrat in 2021 as it did in 2017. The high voter turnout in Bucks County could be interpreted as being driven by national issues that arose in the races for local school boards that animated Republican voters. But the counter-argument to the nationalization narrative in this election is the fact that Luzerne County, the quintessential Trump County, had the third lowest turnout in the state at 25 percent of registered voters. Philadelphia had the lowest turnout among registered voters, as is often the case, with only about 20 percent of voters turning out compared to the statewide turnout of about 32 percent.