Johnson tweet congratulating Joe Biden appears to have hidden reference to Trump

US President Donald Trump (front) with Foreign Secretary Dominic Raab (centre left) and Prime Minister Boris Johnson (centre right) during the annual Nato heads of government summit at The Grove hotel in Watford, Hertfordshire (Stefan Rousseau/PA)

Controversy has surrounded Boris Johnson’s tweet congratulating Joe Biden on his US election victory after sharp eyed social media users spotted the word “Trump” showing faintly in the background of the message.

This led to online speculation that Number 10 had originally prepared a message to herald a Donald Trump win, only to replace it with one acknowledging the Democratic candidate’s success after US media outlets called the race for the former vice president on Saturday afternoon.