Joe Biden is on course to topple Donald Trump in the race for the White House with the latest CNN poll handing the former vice-president a 14-point lead. The Democrat nominee has previously voiced his opposition to the UK leaving the EU and according the experts Mr Biden would take a different stance to negotiations with Britain compared to Mr Trump.
According to Inderjeet Parmar, Professor of International Politics at the City University London, Mr Biden would be under pressure by the radical left-wing Democrats to include healthcare as part of an agreement.
Donald Trump has previously flirted with the idea of including the NHS in any deal but later backtracked his comments following a public backlash, and rejection from Prime Minister Boris Johnson.
However the debate could be reignited in a Biden administration, with the 77-year-old under pressure from supporters including US Senator Elizabeth Warren, Alexandria Ocasio-Cortez and socialist Bernie Sanders.
Vermont Senator Bernie Sanders, was the last Democrat standing in the Primary contest against Mr Biden and carries huge waves of support from within the party and across the US.
The 78-year-old has called Medicare for All plan that would nationalise the health insurance industry.
Professor Palmar said a Biden trade deal would have a greater focus on health, safety and environmental aspects.
He told Express.co.uk: “Biden would be under pressure from the Left of his party given the strength of Sanders, Warren, AOC wing.
“There might also be issues regarding the NHS opening up.
“But the Democrats are largely still a party of big business so the changes might be relatively limited – and once any administration makes major gains, it’s very hard for a new admin to reverse them.
“And I’m certain that the US-UK deal will be conducted with the US-EU deal in mind, so that would complicate things even more.”
The prospect of the NHS being up for the taking was thrust into the spotlight last summer, when Mr Trump said a trade deal would involve everything.
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He said: “I don’t even know where that rumour started.
“We have absolutely nothing to do with it. If you handed it to us on a silver platter, we want nothing to do with it.”
Mr Biden secured enough delegates to formally clinch the Democratic presidential nomination on Friday June 5.
The US election is set to take place on Tuesday November 3.