It looks like SALT deduction limit is the reason why Republicans lost in lot of urban areas. Democrats have been talking about restoring that limit along with a few other changes. By the way, I did not know that as per the current law the limit is only till 2025; after that it’s back to unlimited deductions.
Excerpt: One fraught area for Democrats will be the deduction for state and local taxes, which the GOP law capped at $10,000, though that limit is set to expire after 2025. Combined with the higher standard deduction that was part of the tax law, that cap hits hardest in states such as New York, New Jersey and California, where property and income taxes often exceed $10,000.