An arrangement to manage trade and preserve peace in Northern Ireland after Brexit is souring relations between London and Brussels and risks unsettling the U.K.’s ties with Washington just as President Biden meets Prime Minister Boris Johnson this week https://on.wsj.com/3w6VV0Y
President Trump took a swipe at departing U.K. Prime Minister Theresa May over her handling of Brexit, tweeting: "What a mess she and her representatives have created" https://on.wsj.com/2Jl3gnu
