Harper has attempted to demonize the Bloc Québécois following the formation of the LPC/NPD/BQ coalition. I never voted for BQ or Parti Québécois, but the idea that their mere presence in a coalition is used as an argument against the coalition has greatly angered me (and pretty much every Québécois I have talked to). If Québec is to be a part of Canada, Québécois have every right to influence the direction that the country takes; if you attack the coalition on the basis of the support of the Bloc, you question whether or not Québécois should have a right to influence the country. This is low level demagoguery. The Bloc is not some kind of disreputable organization or a mafia; it is a political party playing by the rules of the Canadian Parliamentary system. If you are not happy, blame the system and not those who follow the rules.
Harper has destroyed in a few days all his efforts to build support for the CPC in Québec.