He is the author of "Populist Radical Right Parties in Europe" (2007) and co-editor of "Populism in Europe and Latin America: Corrective or Threat for Democracy?" (2012). He can be followed on Twitter at @casmudde. More Reuters NewsAustralian aircraft to support U.S.-led air strikes in Iraq: PMHong Kong democracy protesters and officials mark uneasy National DayIn attack by al Qaeda, lines blur between Pakistan's military, militantsAsian factories slow in September, push inflation ever lowerTaliban bombs hit Afghan army vehicles, killing at least seven