People keep saying Pennsylvania is trending right and yet all of the biggest population areas in the state are trending blue. There is not many more areas that Republicans are not maxed out basically, while Democrats continue to have room for growth in places like Allegheny and the suburbs (Philly, Harrisburg, and Pittsburgh)
This election also showed Dems still have ancestral strength in Erie, Lackawanna, etc.
Of the “big three” Michigan probably is the most likely to trend R despite its seeming bounce back while PA seems most favorable for Ds long term. Don’t forget Lancaster as a likely D trending area, it will be a meme when it finally flips. Shapiro was so close but alas no cigar.