Theresa May taunted Jeremy Corbyn that he had 'failed' today after the Tories held key London seats in local elections and made gains in other parts of the country. In the biggest test of public opinion since the general election, Labour's efforts to wrest the strongholds of Westminster, Wandsworth and Barnet from the Tories fell flat. In Barnet, where Labour needed just one seat to secure control, the Tories entrenched their position - with defeated councillors launching a furious attack on Mr Corbyn for failing to get a grip on the anti-Semitism crisis. Labour also came up short in crucial...