Motion tabled in name of former foreign secretary Dame Margaret Beckett would require a public vote before any deal with the EU.

Amendment to cut off funding to vital departments if UK crashes out of EU without an agreement - to make the policy untenable - not picked

MPs are expected to launch a fresh attempt to block a future prime minister pushing a no-deal Brexit policy by threatening to cut off vital funds for government departments.

Focusing only on constitutional battles risks playing into Downing Street’s ‘frame that MPs are frustrating rather than protecting democracy’, strategy note says.