Ahead of President Trump's Aug. 1 deadline for the resumption of reciprocal tariffs, a court is hearing arguments over whether Trump's sweeping tariffs are lawful.

President Donald Trump’s authority to issue sweeping global tariffs under an emergency law was met with skepticism at a federal appeals court hearing Thursday, a day before higher rates against dozens of countries are set to kick in.

The arguments underscored the financial stakes for U.S. importers as the Trump administration prepares to impose higher rates without the explicit approval of Congress.