Theresa May is trying to solve a cabinet dispute over Britain’s customs relationship with the EU

Conservative MPs are preparing for another snap general election as they fear the Brexit deadlock will become insurmountable for the prime minister.

Some have spoken to their local party associations asking to be readopted as prospective parliamentary candidates in readiness for an autumn election.

The back-bench MPs acted after meeting Theresa May last week for a private Brexit briefing as she tried to stop a row over Britain’s future customs relationship with the European Union tearing the party apart.

But far from being reassured by meeting the prime minister, they left Downing Street convinced that another election could be around the corner.

One Tory Brexiteer said he could not see how the government could “square the circle” and come up with a solution on Britain’s