Jeremy Hunt has insisted that Britain would "never" harm transatlantic intelligence-sharing ahead of an expected government climbdown over Huawei to avoid a clash with Donald Trump.
The US president will arrive at Buckingham Palace this morning to begin his three-day state visit, after his ambassador to London warned of the consequences of opening 5G infrastructure to the Chinese telecoms giant.
Woody Johnson said the future of US-UK intelligence-sharing was "to be determined" if Britain went ahead with a plan to allow Huawei to bid for 5G contracts, something he described as "a big risk".
The Foreign Secretary, who is one of the leading contenders to replace Theresa May, left little doubt that he would ditch the Prime Minister's controversial Huawei plans if he were to become leader.
He said: "We would never take a decision that would affect our intelligence-sharing capabilities with the US. We have to look at the technical issues that are around whether buying products from a specific country could be a back door to espionage, and we are looking at those very carefully."