He said there were ‘many areas’ where the UK and US would now be ‘able to make common cause’, as he was grilled at Prime Minister’s Questions.

‘I had and have a good relationship with the previous president, I do not resile from that – it is in the duty of all British prime ministers to have a good relationship with the White House,’ he said in response to a question from Labour’s Angela Eagle.

‘But I am delighted to find the many areas in which the incoming Biden/Harris administration is able to make common cause with us.

‘In particular it was extremely exciting to talk to president-elect Biden about what he wants to do with the COP26 summit next year in which, as you know, the UK is leading the world in driving down carbon emissions and tackling climate change.’