The Guardian supported Media Standards Trust has released research which is remarkable. The twitterati left have been making an issue of the treatment of Ed Miliband, the reporting of his nose picking and inability to eat a bacon sandwich or exit a TV stage without tripping up particularly vexes lefties who want reporting to be about boring issues rather than character. They have been particularly bilious about The Sun’s partisanship… 

The Mirror’s partisanship has gone unremarked in the broadsheets, the way it caricatures Tories as wicked toffs intent on closing down the NHS and grinding the poor into the workhouses is reportage from a surreal alternative reality. For the left the Sun’s journalism is partisan rubbish whereas the Mirror’s journalism is “campaigning”.

The above graphic is based on 7,000 articles analysed by the Media Standards Trust’s Election Unspun project. It found that the most partisan paper was The Mirror, which was more positive about Labour than The Sun was about the Tories and conversely The Mirror was more negative about the Tories than The Sun was about the Labour party. In short, The Mirror was the most partisan paper of all…