A coalition of high-tax blue states is suing the federal government, claiming the Republican tax overhaul singles them out by capping treasured deductions.
The lawsuit from New York, New Jersey, Connecticut and Maryland amounted to their latest bid to fight the limit on state and local tax (SALT) deductions imposed by the GOP-authored tax plan.
The tax law signed last year caps those SALT tax deductions at $10,000.
The deduction is especially popular in high-tax, Democratic states, where many homeowners will see big increases in their federal tax bill from the change.
Some Republicans from those states joined Democrats last year in voicing concern about that change during the drafting of the bill.