Does the description of a politician who has overpromised and created completely unrealistic expectations sound familiar? Can you think of a name that personifies someone fighting to survive but unwilling to change tack, rethink their approach or make any political sacrifices? Theresa May is probably the first to come to mind: just this week she endured criticisms of her Brexit deal from MPs on all sides of the House, only to be humiliated further by Donald Trump’s outspoken comments suggesting the deal threatens trading relations between the UK and the US. “A great deal for the EU” were his words – clearly aligning himself with fuming Brexiteers on the Tory backbench.

But while our prime minister is perhaps the most extreme example of a politician under pressure, there is another who is experiencing the uncomfortable reality of promises made that are proving near impossible to deliver: London’s mayor, Sadiq Khan.

“The London Plan focuses entirely on increasing development density and assumes increased build rates that experts uniformly believe are impossible” 

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