According to this article: Miami, Jacksonville, Las Vegas, and Cleveland.
https://www.bloomberg.com/news/features/2020-12-04/how-metro-areas-voted-in-the-2020-election
Suburbs of Pittsburgh, especially Beaver County
Biden actually did better than Clinton in the Pittsburgh metro area. In fact, he came very close to winning it. Refer to the article.
I actually think it’s going to trend Democratic since Republicans have pretty much maxed out in south western PA (especially in Greene county) and Democrats have plenty of room to grow in Allegheny. It also looks like Butler, Westmoreland, and Washington are trending D, even if slightly.
The rest make sense, but
Jacksonville??That is literally one of the only parts of Florida trending to the left.