Labour will promise not to increase VAT or NI, McDonnell hints

Shadow chancellor says he cannot pre-empt Labour manifesto but signals opposition to rises and says party should rule out mansion taxJohn McDonnell has signalled that Labour’s manifesto will pledge no VAT or national insurance rise, and has said he will argue the party should rule out reviving Ed Miliband’s mansion tax policy.Speaking to the Guardian, the shadow chancellor said he could not pre-empt the party’s manifesto, which is agreed through its national executive committee