Today, we look at how fighting within the Labour party over who should be their general election candidates is only the latest turn in a long running battle between different its different political wings.Laura and Paddy look at what it’s meant for the campaign so far, and they discuss the Lib Dem’s strategy.Plus - we answer questions from Newscasters including, what do polls actually tell us?Newscast brings you daily analysis of the latest political news stories from the BBC. It was presented by Laura Kuenssberg and Paddy O’Connell. It was made by Chris Flynn with Arsenii Sokolov. The technical producer was Gareth Jones. The assistant editor is Chris Gray. The editor is Sam Bonham.