The Lib Dems are pointing to a recent study suggesting 20% tariffs - or charges - on UK exports to the US could cost the British economy £22bn a year. Lib Dem leader Sir Ed Davey said the public deserved to know the level of risk to the UK's economy, jobs and living standards, and called on the government to "come clean" now.

A group of House Democrats is pushing to block President-elect Donald Trump from being able to impose his sweeping plan for tariffs.