UNITE general secretary Len McCluskey pledged yesterday to rally behind Labour to evict the Con-Dems from Downing Street. 

The combative general secretary has talked openly about the prospect of Unite quitting Labour should it lose the election by offering a “pale shade of austerity.”

But Mr McCluskey called on members to postpone the fight over Labour’s future, offering union cash to aid the party’s campaign as he insisted that “there is no third option.