Contributor(s): Professor Vernon Bogdanor, Professor Tony Travers | Professor Vernon Bogdanor discusses the General Election 2015 with Professor Tony Travers. What can historic and recent elections tell us about this year’s contest, the rise of multi-party politics and the potential outcomes in the event of a hung parliament on 7 May? Vernon Bogdanor is Research Professor at the Institute for Contemporary British History at King's College London and Professor of Politics at the New College of the Humanities.