Downing Street aide faces calls to quit over 'outing' of Brexit whistleblower

A Downing Street aide is facing calls to resign after allegedly "outing" a whisteblower who claimed the official Brexit campaign broke strict spending rules during the European Union referendum.

Shahmir Sanni claimed at the weekend that Vote Leave used its links with another pro-Brexit group to get round the £7 million (€8.02 million) spending limit monitored by the Electoral Commission.