We’re five weeks into the election campaign – and just days away from polling day – and voters have plenty of parties, and numbers, to consider. Labour will raise everyone’s tax bill by £2,000, claim the Conservatives. Mortgages will rise by £4,800 under another Tory government, insist Labour. Is any of it true?

‘I would suggest that voters entirely ignore all of those sorts of numbers and calculations’, says Paul Johnson, director of the Institute for Fiscal Studies, in The Spectator’s office.