President Donald Trump on Thursday threatened a 200% tariff on European wine, Champagne and spirits if the European Union goes forward with a planned 50% tariff on American whiskey. Wine sellers and importers said a tariff of that size would essentially shut down the European wine business in the U.S.

The EU has proposed an American whiskey tariff, in response to steel and aluminum tariffs by the U.S. administration, that is expected to go into effect on April 1.

President Trump threatened to impose 200% tariffs on alcohol from the European Union, one day after the EU said it planned 50% import taxes on U.S. whiskey and other products from April 1, in retaliat