Mr. Greer, who is Mr. Trump’s top trade negotiator, said in a Jan. 15 interview with The New York Times that, following any adverse ruling, the administration would “start the next day” to reestablish tariffs “to respond to the problems the president has identified.”
Mr. Greer expressed optimism that the Supreme Court, which is currently reviewing the president’s use of an emergency law that underpins most of his tariffs, would rule in the administration’s favor. But Mr. Greer said that he and other advisers had given the president “a lot of different options” to achieve his trade goals at the beginning of the administration, meaning the president could turn to different legal authorities to impose similar tariffs worldwide.
“The reality is the president is going to have tariffs as part of his trade policy going forward,” Mr. Greer said.
On Saturday, Mr. Trump outraged the European Union by threatening to impose tariffs on exports from seven European countries unless a deal is made to sell Greenland, a territory of Denmark, to the United States. Ted Murphy, an attorney at Sidley Austin, said in an emailed response that he believed that Mr. Trump would likely rely on IEEPA, the emergency law being reviewed by the courts, to impose those tariffs.
“I am not aware of any other trade statutes that would cover this situation (e.g., another nation refusing to sell the United States its sovereign territory),” Mr. Murphy wrote.