Tony Travers on local elections: There is a nibbling away of both the Conservative and Labour vote

May 2nd saw the last set of local elections which will take place before the General Election.
Our panel of experts are set to analyse the results from hundreds of council wards and mayoral contests in cities and combined authorities across the country, disentangling what they mean for parties in the coming months.
How much can we really use locals to predict the result of a general election?
Join our panel to find out.