Conservative insiders are warning that Mr Trump beating Joe Biden in November’s election would “chuck a massive grenade into global geopolitics” – including major knock-on impacts on the UK.

But Foreign Office diplomats are in charge of the process of compiling a folder on Mr Trump detailing his latest positions on key issues affecting the UK, such as the Ukraine crisis, the Middle East and international trade.

Britain’s ambassador to Washington, Dame Karen Pierce, is understood to be a key figure along with the UK envoys to Nato and the United Nations. “Karen will be doing a lot of feeding through of intelligence on what she is picking up,” a source said.

Three senior ex-diplomats told i this week that the Government would need contingency plans to protect against the security risks posed by the re-election of Mr Trump, who has threatened to withdraw the US from Nato and disparaged American support for Ukraine.

https://www.msn.com/en-gb/news/world/uk-preparing-secret-dossier-on-trump-2-0-amid-security-fears/ar-AA1mwjyw