US President Donald Trump has said European Union trade rules make it “impossible” for American firms to do business with the bloc.
Defending his tariff plans as he hosted the Swedish PM at the White House, Mr Trump said other countries had “taken advantage of” the US for decades.
Shortly afterwards it was announced that White House economic adviser Gary Cohn, who opposes tariffs, would quit.
The EU has drawn up a $3.5bn (£2.5bn) hit list of retaliatory tariffs.
Motorbikes, whiskey and T-shirts are on the bloc’s list of 100 American products, the BBC understands.
Read More: BBC.com