DOJ antitrust chief touts blocked mergers

Justice Department antitrust division chief Jonathan Kanter praised his agency’s record of stopping mergers in concentrated markets Tuesday amid ongoing tensions between policymakers and big business that are reshaping party alliances.

Kanter — who has overseen merger cancellations ranging from the airline industry to book publishing, as well as the first criminal monopolization legal win in decades — said that amped antitrust enforcement is on the right track.

“We took these...