Gavin Esler is a Scottish journalist, television presenter and author. He was a main presenter on BBC Two's flagship political analysis programme, Newsnight, from January 2003 until January 2014, and presenter of BBC News at Five on the BBC News Channel.
His most recent work, 'How Britain Ends: English Nationalism and the Rebirth of Four Nations' is a thought provoking book on the history of the United Kingdom and it's future.
For years the United Kingdom has been what Gavin Esler calls a 'secret federation', but without the explicit federal arrangements that allow Germany or the USA to survive.
Now the archaic state, which doesn't have a written constitution, is coming under terrible strain. Can we find a way of dealing with the state's new place in the world? What constitutional, federal arrangements might prevent the disintegration of the British state, which has survived in its present form for 400 years?
Join Gavin as he discusses his book with David McKenzie - Scottish Liberal Democrat candidate for Glasgow Kelvin & Wendy Chamberlain MP for North East Fife.