If the president wants to challenge a New York state law, let him do it on New York's turf.

That's what lawyers for the state told a federal judge in Washington on Wednesday in a hearing on Donald Trump's suit over a law that could allow House Democrats to get his state tax returns.

"It is improper for this court sitting in D.C. to exercise authority over elected officials sued only in their official capacity," said Andrew Amer, a lawyer for New York Attorney General Letitia James and the commissioner of the state's revenue department.