W hen the prime minister called for “honest discussions” on rejoining the European Union, he probably did not have in mind an open and very public split with his own chancellor of the Exchequer.

Yet, within days of Andy Burnham raising the question of restoring freedom of movement of workers between Britain and the EU – a central pillar of the European Union, and a condition for rejoining – John Healey is emitting very different vibes from those of his Downing Street neighbour.

Mr Burnham has said on more than one occasion that he would like to see the UK back in the EU within his lifetime . Perhaps only half-joking, Mr Healey quipped that “I’m older than Andy Burnham. I don’t expect to see that.”

Mr Healey is, in fact, only 10 years’ senior to the prime minister – and, while out for a recent jog , appears to be in rude good health.…