Editorial: As the new government performs its first U-turn over tax threshold plans for the lowest paid, the prime minister must show he can match his welcome sense of urgency and compassion with better fiscal discipline

The pledge from the new Labour leader comes as he is expected to announce a policy blitz in his first week in No10 to help ease the pressure on cash-strapped households

'Andy Burnham will be given he chance to introduce himself to the country as Prime Minister on Monday and set the tone of his government for years to come. The stakes couldn't be…