Nick Vivyan is Professor of Politics at Durham University. He is Co-Editor-in-Chief of the journal Electoral Studies. Benjamin E. Lauderdale is Professor of Political Science at University College London. He was an Associate Editor of the American Political Science Review from 2016-2020. Chris Hanretty is Professor of Politics at Royal Holloway, University of London. In 2019 he was the winner of the UK Political Studies Association's Richard Rose Prize and the Philip Leverhulme Prize.