Theresa May will ask Jeremy Corbyn for his support in delivering Brexit and pushing through legislation as she faces up to the “reality I now face as Prime Minister”.

Mrs May will on Tuesday make a direct appeal to opposition parties to “contribute, not just criticise” and help “clarify and improve” her policies in the Commons instead of undermining them.

It comes at a time Mrs May's leadership is at its weakest, amid open calls by Tory MPs for her to stand down following her failure to secure a majority at the election.

Her comments are likely to spark fear among pro-Brexit Conservatives that Mrs May is willing to compromise on their ambition for a hard Brexit.