A Blairite, a Brownite and an Corbynite walk into a pub. “Hi Andy, what are you having,” says the barman. Its a joke so lame it staggers in on calipers. The Prime Minister’s party critics have long sought to portray Andy Burnham as inherently insubstantial. A chameleon wearing flip-flops.
But Burnham has now had the last laugh. Being fleet of foot (sans flip-f...