In Another U. S. Supreme Court Opinion, States Are Given Power To Sue Banks To Protect Consumers & Minorities From Financial Discrimination Practices.

The case is CUOMO, ATTORNEY GENERAL OF NEW YORK v. CLEARING HOUSE ASSOCIATION, L. L. C., ET AL., 08–453 (2009).

You can read the opinion here.

The Majority opinion (5 t0 4) authored by Justice Antonin Scalia (the Court's most conservative Justice, who was joined by the Court's liberal Justices!), held, in a sharp rebuke to the Bush Administration, that states, not just only federal bank regulators, can compel banks (through the courts) to comply with rules meant to protect consumers from potentially unfair lending practices or pursue cases of potential discrimination against minorities.

Go to the opinion to read more, for I shall not analyze the case.