The president said he would impose the levies if the European Union does not walk back plans to place retaliatory tariffs on whiskey and other U.S. products.
Prime Minister Keir Starmer wants to stay close to the United States, even as the uncertainty unleashed by President Trump offers a chance to build ties with the European Union.
The European Union responded to American steel and aluminum tariffs with its own tariffs on boats and bourbon — and pledges of more to come.
The European Union wants to force the United States to the negotiating table with retaliatory tariffs on a range of American products, including some from Republican strongholds.