Senators Elizabeth Warren and Jon Ossoff have formally requested detailed data from the Trump administration regarding the impact of current tariff policies on U.S. manufacturing output.
The letter, shared exclusively with CNBC, questions the administration's narrative that its trade measures are driving a domestic industrial resurgence.
The senators argue that available evidence suggests tariffs are disrupting supply chains and increasing costs for manufacturers rather than stimulating production.
They are seeking specific metrics on job creation, factory output, and input costs to assess whether the policy is achieving its stated economic goals.
This development adds to growing congressional pressure on the White House to provide transparent economic data.
Warren has previously scrutinized corporate strategies related to trade and technology, including recent inquiries into Nvidia’s export controls and data-center investments.