London is the child poverty capital of the UK, with more poor children living in London than in Wales and Scotland combined. These numbers are driven up by a jobs market that is not working for mothers.
No one denies that Rachel Reeves, as Labour’s shadow work and pensions secretary, has one of the toughest gigs in town. Fiscally, it seems a Labour government would cap spending on social security. Politically, at a time when highly punitive policies such as the benefit cap attract broad public support, Labour is sensitive to proposing any reform that could be spun as "soft on scroungers". Getting the politics and the economics right will not be easy.
As Londoners start to consider who their next mayor could be, does the New York race give clues for the London campaign?