Two years of uncertainty. Maybe more. That is what faces the tens of thousands of Europeans who have flocked to London over the past few decades to make a career in finance, their continued presence in the UK rendered uncertain by the Brexit vote.

Last week's political developments have been bad news on two fronts. Theresa May's campaign to become Conservative leader was short, but she had time to make clear that no guarantee can be made on the status of European Union workers in the UK until there is a deal on British nationals living in the rest of the EU.