Theresa May's Brexit plans could jeopardise a post-Brexit trade deal with the US because Britain would be tied to EU rules on goods, Downing Street has suggested.

Papers released to Cabinet ministers ahead of a summit at the Prime Minister's rural retreat in Chequers state that the UK will make an "upfront choice" to "harmonise" with EU rules on goods.

Downing Street adds that alignment with EU standards "would not allow the UK to accommodate a likely ask from the US" to recognise its own standards as a condition for a future trade deal.

Jacob Rees-Mogg, the leader of a 60-strong group of Eurosceptic Tory MPs, has been clear that regulatory alignment with the EU is a "red line" for MPs. The paper confirms suggestions that the Government is seeking a Single Market on goods with the EU after Brexit.