US officials have told their British counterparts that a vote to leave would exclude the UK from a transatlantic free trade deal which leaders hope to thrash out later this year.
American diplomats believe it will be very difficult to get the so-called Transatlantic Trade and Investment Partnership – which could generate hundreds of billions of pounds worth of trade – through the US Senate.
In a warning shot, they have made clear they would be very unlikely to strike a separate deal with Britain if the UK votes to quit the EU.
Negotiations are due to start within weeks and David Cameron hopes to give it a boost when he hosts the G8 summit in Northern Ireland next week.
But US officials have told the Mail that many US Congressmen, keen to protect local industries from competition from Europe, are suspicious of the plans.
Downing Street officials were cock a hoop on Mr Cameron’s recent trip to Washington when President Barack Obama publicly backed his policy of renegotiating Britain’s role in Brussels before holding a referendum.
Privately American officials have said they want Britain to remain in the EU, angering many Tory MPs.
Gary Hufbauer, a former US Treasury official, said the Obama administration’s hopes of securing a trade deal would be sunk by a British exit from the EU.
‘If the UK separates from the EU, I think will go a long way to derail the TTIP project,’ he said.
OBAMA WANTS THE UK IN THE EU FOR HIS BENEFIT, NOT FOR THE BENEFIT OF HARD-WORKING UK TAXPAYERS. VOTE UKIP TO END ALL THIS EU NONSENSE.
Sounds suspiciously like a threat.
Good, we got along without you before we joined this communist club we'll do it again, get lost Obarma
And will save billions moving out of the EU
who the hell rules this country parliament or the whitehouse or the E.U i think the public have a right to know
It is about time the stupid British people realized that the USA is nobody's friend unless they want something.
The truth is this - most European countries despise America - and Britain is one of the few countries that haven't turned their back on the USA - so Obama knows that if Britain leaves the EU - there goes any chance of having any influence in Europe .
What a guy, this Obama! This is the thanks Britain gets for sending troops to the Middle East to fight and die alongside the Yanks. All I can say is that as an American I am ashamed of this president and glad that I voted against him.
Hi, Britain could miss out on billions of pounds of U.S. investment if it leaves the EU, Obama officials warn. An unacceptable Mr. Obama intrusion into British internal politics. Let¿s talk about Guantanamo Bay.
Obama refused to support Britain in the recent revival of the Falklands spat with Argentina. Now his administration threatens to shun our trade unless we stay in the EU. All smiles and handshakes when Cameron went for his photo shoot with Obama but there is very little substance to the so-called special relationship. With friends like them eh ?