Who is Shabana Mahmood and why this role?

There was outrage from Labour MPs on Monday evening as Shabana Mahmood outlined her plans to shake up the asylum system. Will these policies be watered down? John Harris finds out what is happening behind the scenes with Kiran Stacey. Plus, now that Labour has adopted Reform UK rhetoric on immigration, where does the party go from here? John talks to Guardian columnists Gaby Hinsliff and Rafael Behr. Help support our independent journalism at theguardian.com/politicspod