There has been talk lately of Harper's resignation in the new year or an early election. A number of potential heirs to the PM throne have been mentioned and have started to be more visible and speak out. While he has always been somewhat of a loose cannon, Bernier has to be considered a potential successor. As this article suggests, will he be the first to publicly call for Harper to step down?
http://looniepolitics.com/et-tu-bernier/