Second, he has benefited from – cynics would possibly say adeptly exploited – ambiguities over who precisely is answerable for what. Is the infuriating new native site visitors scheme right down to the Mayor, the borough, some Whitehall diktat, or an unedifying squabble between the council and TFL? Why can no-one determine who's answerable for Hammersmith Bridge? If native housing developments are intrusive or unsuitable, will we blame Khan, councillors, or nationwide guidelines?