A senior Liberal informs us that, unless party leader Paul Martin crashes and burns in tonight's debate, the campaign will be shifting into a more positive gear tomorrow. That shift will presumably include the release of a new round of television ads that will make the prime minister look...er...prime ministerial. According to the Liberal, strategists are satisfied they don't need to feather the Conservatives, having already tarred them. And now it's time to present Canadians with a ballot box alternative to Stephen Harper.