Claire Coutinho, the shadow energy secretary, sought to exploit Labour's leadership chaos in House of Commons clashes with David Lammy, the Deputy Prime Minister.

Claire Coutinho, the shadow energy secretary, sought to exploit Labour's leadership chaos in House of Commons clashes with David Lammy, the Deputy Prime Minister.

Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleDeputy prime minister David Lammy is facing…