Diane Abbott tells Keir Starmer there is 'nothing moral' about Labour's welfare cuts / Diane Abbott rejects Starmer's proposal to cut disability benefits: 'It's not a Labour thing to do' / Cutting benefits is 'not a Labour thing to do', says Diane Abbott / Diane Abbott slams Keir Starmer's plan to cut benefits as Labour civil war erupts / 'Appalling': Diane Abbott excluded from Labour MPs' meeting with Keir Starmer