In a speech at which he confirmed he would run to become Labour leader, Wes Streeting has said that he would ‘one day’ like the UK to rejoin the EU.
Greater Manchester Mayor, who also wants to run, Andy Burnham has said similar things in the past, he’d first have to win a by-election in Makerfield - an area that voted to leave.
So, are Labour going to go to war over the issue again? Does it put Burnham in a tricky position? And is it what the public wants?
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Newscast brings you daily analysis of the latest political news stories from the BBC. The presenters were Laura Kuenssberg and Paddy O'Connell. It was made by Chris Flynn and Adam Chowdhury. The social producer was Grace Braddock. The technical producer was Gareth Jones. The assistant editor is Chris Gray. The senior news editor is Sam Bonham.