Major test of Public Opinion before a General Election later this year. Theres little good news for Prime Minister rishi sunak. At a by election in Blackpool South, his party suffered its Third Largest swing to the Opposition Labour Party since the second world war. At a local council level, the results are no better. The conservatives have lost half of the seats announced so far. Experts say they could be on track to lose a staggering 500 councillors, one of the worst performances at the polls in four decades. Heres our Political Editor chris mason. Cheering. Northallerton in North Yorkshire this afternoon. The Prime Minister lives a few miles away, and look whos turned up to rub his nose in it. York and North Yorkshire, the wider county so often rock solid conservative, has elected a labour mayor. Weve had really good results across the country all day long, but this is a very, very special moment, david, to become the mayor here. And thank you to the team for all the fantastic work