Trump, who has wielded tariffs as a tool of American economic might, has set tariff rates for dozens of economies including the European Union at between 10 and 41 percent come August 7, his new hard deadline for the duties.

The art of the trade deal? About 70 countries face huge export tax increases, but a last-minute change in when they take effect gives them a week to negotiate new agreements.

On Thursday, Donald Trump announced sweeping new tariffs against U.S. trading partners that will go into effect next week. The announcement came on the same day that an appeals court grappled with the question of whether Trump’s tariffs are even legal.