And this presents a problem for the Conservatives, since their campaign is so focused on ramming home two central messages: that they are the only people who can be trusted to run the economy and that a bumbling Labour leader cannot be trusted with the keys to No 10. The economic news gets better by the day, with unemployment falling again and the International Monetary Fund saying the Coalition’s economic strategy has clearly worked. But it is not moving the polls. Meanwhile the politically-astute Mr Miliband is, once again, doing his best to prove his doubters wrong – and with some success.