This is true of most politicians. They know that getting elected is not really about policy, but rather about capturing the sentiments of the population. When Trudeau was elected, the country was sick of the dour Harper et al brand and wanted a younger, hipper PM with a hope-and-change message. Now that Trudeau has run through his idea list, and Canadians are unhappy with the economy, Poilievre just needs to reflect that sentiment. You hardly ever hear him talk about actual policy because he knows that concrete ideas can be attacked. Riding the wave of resentment is the successful strategy for him, so he rarely says anything beyond criticizing Trudea. I'm pretty sure that the Liberals are resigned to losing at this point, and one gets the sense that Trudeau is just tired. And Freeland is smart enough to keep her powder dry and wait until we get sick of Poilievre in turn.