Scotland’s Deputy First Minister said it was ‘disappointing’ that devolved governments had not been told the agreement was imminent.

The secret conclave meeting – steeped in tradition and mystery – had only just begun some 24 hours before white smoke appeared.

Agriculture is a key part of a new trade deal struck between the UK and US, announced on Thursday by Sir Keir Starmer and Donald Trump, with tariffs reduced on US products including beef and ethanol ...