Labour will this week back a cross-party amendment which would set Britain on course for a referendum on Theresa May’s deal.

The Sunday Telegraph can reveal the final text of the amendment by backbenchers Peter Kyle and Phil Wilson, which has been revised following input from Sir Keir Starmer, the shadow Brexit secretary.

Labour plans to whip its MPs to vote for the amendment, which the two backbenchers will table on this week’s Meaningful Vote.

Sir Keir told The Sunday Telegraph the amendment “is clearly in line with the approach the Labour party has taken to a public vote”.

The amendment has also drawn support from Conservative MPs, with former minister Phillip Lee a lead signatory.