The U.S. Supreme Court unexpectedly gave more power to state bank regulators, at the expense of federal agencies. In a New York case, the Court supported the right of the New York Attorney General to proceed through judicial actions to investigate national banks. The banks had asserted that only the Office of the Comptroller of the Currency could investigate their activities. The long term impact may be to increase the arguments for retaining state regulation, even while new potential regulators of insurance and financial services are being considered by Congress.