If ever a bombshell hit a Canadian election campaign, it happened this week. Photos of Justin Trudeau in blackface and brownface swirled a very complicated brew of opinion in the country. Erin Kelly is CEO of Advanced Symbolics Inc, and a skilled interpreter of what Polly, the artificial intelligence analyst, has been picking up on from hundreds of thousands of Canadians since that story broke. She talks to Steve Paikin about what Canadians are thinking about Trudeau in light of these revelations.