U.S. Takes Huawei Fight Directly to Telecom Industry

American officials inserted themselves into the telecom industry’s biggest trade fair to slam Huawei Technologies Co.—one of the event’s main sponsors—as “duplicitous and deceitful” and to warn other governments they won’t be able to use U.S. aid to buy the Chinese company’s gear.

The Trump administration sent a large delegation of senior officials from the State, Defense and Commerce departments, as well as the chairman of the Federal Communications Commission, to make its case against Huawei directly to more than