Two of Labour’s London mayoralty hopefuls clashed yesterday as the fallout from Emily Thornberry’s “condescending” white van tweet continued.

Tottenham MP David Lammy described the social media scandal which saw her sacked from the shadow cabinet as symptomatic of Labour’s disconnection from working-class voters.

But fellow London MP Diane Abbott insisted Ms Thornberry was “not a snob” and said party leader Ed Miliband had “made a mistake.”