The Federal Court is presented with preliminary arguments in the legal challenge of Justin Trudeau government's invoking of the Emergencies Act. The Liberals insist their action was necessary and challenge reports in documents suggesting they had options.  Guest: Christine van Geyn. Litigation director, Canadian Constitution Foundation. CCF filed an application in late February of a judicial review of the Trudeau government's decision to invoke the Emergencies Act.  Learn more about your ad choices. Visit megaphone.fm/adchoices