President Trump criticized British Prime Minister Theresa May's handing of Brexit Thursday, telling The Sun newspaper that her plan was "very unfortunate" and would "probably" kill any possible trade deal between the U.S. and the U.K.
The comments are a body blow to May's government, which is struggling to steady itself after two key Cabinet members -- including Foreign Secretary Boris Johnson -- resigned in protest earlier this week at her plan to keep Britain and the European Union in a free market for goods, with a more distant relationship for services.
May, who voted "Remain" in the 2016 referendum on leaving the EU, proposed earlier Thursday that Britain and the bloc would stick to a "common rulebook" with the EU for goods and agricultural products in return for free trade, without tariffs or border customs checks.
Johnson, a former mayor of London, was the most prominent supporter of Brexit and resigned as foreign secretary after reportedly calling May's plan a "turd."
Trump also had harsh words for current London Mayor Sadiq Khan, a fervent critic of the president, saying Khan "has done a terrible job" running Europe's third-largest city.