Was Gordon Brown's charge that the Tories' tax policy was "dreamt up on the playing fields of Eton" damaging to the Conservatives, or a miscalculation?
The Conservative party chairman, Eric Pickles, is from a working class background himself, and insists the class system is "as dead as a doornail". If so, why does the party's official website mention the state schools attended by three members of the shadow cabinet, but not the private schools that educated the rest?
Pickles' view is challenged by people we spoke to on the streets of Brixton and Sloane Square.
And with me in the studio to discuss Labour's "class war" tactics are columnist Madeline Bunting and leader writer Tom Clark.