Professor Azeem Ibrahim, a former adviser to the Biden campaign, said that Sir Keir’s previous vocal opposition to Donald Trump could “seriously handicap” the UK’s relationship with the US.
Speaking to Express.co.uk, he said: “In terms of post-Brexit Britain, the world is just going to be divided into major camps – and those camps are going to be the US, China and possibly India.
“Europe is going to be much less significant.
“Post-Brexit Britain, our interest is much more significantly aligned with the US.
“And Starmer has in the past been very critical of Donald Trump and, rightly so, but he has not indicated that he will be able to work with a Republican president.
“The Republican Party in the US has changed quite dramatically and Starmer’s criticisms of Trump and the republican positions are well pronounced.
“A Republican president is very likely in the next election and if you look at the front runners, they have many elements of Trumpism within them.
“So Starmer I think really needs to indicate that he is able and willing to work with a republican party if they gain control, otherwise our most important relationship post-Brexit could be seriously handicapped.”
