What will be remembered of Boris Johnson’s political career, do you reckon? Covid? The Boriswave, the immigration influx that saw over a million people a year enter the UK? The Boris bike? The best thing he did in office, to my mind, was, as London mayor, to introduce the Boris bus, which is now being phased out by his successor, Sadiq Khan. To get on a Boris bus is to swan around London on the best that public transport has to offer. It is not, admittedly, in the same league as the Routemaster...