Regardless of who forms the next government, this election has polarized the country and greatly exacerbated political fault lines: along geography, education, gender and the key issues at play. The truth is that many Liberal and Conservatives harbour a disdain bordering on hatred for the rival party’s leader. And it is revealing that polling indicates that Conservative supporters who deeply dislike Justin Trudeau also dislike NDP leader Jagmeet Singh. So why would the same voters who disdain Trudeau also dislike Singh? Pollster Frank Graves and...