After winning a second term as London¡¯s mayor in May 2012, an ebullient Boris Johnson promised to devote his time ¡°fighting for a good deal¡± for the U.K. capital.

Yet less than a decade later the city that made the British prime minister¡¯s political career risks becoming an economic casualty of his premiership.

There¡¯s a danger that London turns into collateral damage from the mantra to focus on the provincial regions that backed leaving the European Union and cemented the Conservative Party¡¯s power. Business leaders in London warn the government needs more urgency in its efforts to boost the engine of U.K. growth in the wake of the coronavirus pandemic.