Joe Biden's White House tried to put out the flames of a major transatlantic bust-up with Britain today after the president was accused of rebuking to Boris Johnson for 'inflaming tensions' in Northern Ireland.
Brexiteer Tories branded the 78-year-old Democrat 'senile' after he failed to side with the UK in its 'sausage war' bust-up with the EU.
The US President used his diplomats to express 'great concern' over the conflict centred on post-Brexit trade rules agree last year by both sides, which the UK is now seeking to change, the Times reported today.
The US is said to have issued a 'demarche' to Britain, an official diplomatic censure not normally used against allies, especially those as close as the two nations.
The United States was said to have 'strongly urged' Britain to 'stay cool' and reach an agreement, even if that meant making 'unpopular compromises'.
The report prompted a massive backlash from Tory backbenchers and the DUP leader Edwin Poots after the PM was accused of 'inflaming tensions' in Northern Ireland and threatening the peace process.
But ahead of bilateral talks between the two leaders due to take place later this afternoon, a senior Biden administration official said: 'This is wrong.