Trump aide warns UK against creating 'hard border by accident'

The British prime minister, Boris Johnson, has been urged to avoid creating a "[hard] border by accident" by US president Donald Trump's special envoy to Northern Ireland Mick Mulvaney. The interjection comes 24 hours after a call from Democratic candidate for the Presidency Joe Biden that there would be no UK-US trade deal should the Northern Ireland peace process "become a casualty of Brexit." The UK Government is preparing to introduce legislation that would override parts of the EU withdrawal treaty pertaining to the Northern Ireland protocol, a move it has admitted would break in...