UNITE general secretary Len McCluskey condemned Blair-era traitors and the Tory-supporting mass media yesterday as he pledged allegiance to Ed Miliband in front of hundreds of activists in Birmingham.

The leader of Britain’s biggest union hit out at a relentless smear campaign targeting the Labour leader including front-page attacks in the Times and Telegraph.

Among those lining up to shoot down Mr Miliband are a gaggle of former leading party figures who served in multi millionaire Tony Blair’s government.