AmEx Gets More Claims Trimmed From Anti-Steering Antitrust Suit

American Express Co. succeeded in narrowing a consumer lawsuit over “anti-steering” rules that bar merchants from pushing customers toward less costly payment methods, but a federal judge in Brooklyn let parts of the case move forward.

Judge Nicholas G. Garaufis threw out claims under the antitrust laws of 13 states and the consumer protection statutes of three, further paring back the proposed class action after his ruling in April dismissing federal antitrust claims from the U.S. District Court for the Eastern District of New York.

The decision lets the plaintiffs, who use payment cards other than AmEx, move forward with ...