COVID-19 is battering economies in Canada's major cities. While some economists predict a rebound when the virus is contained, Edmonton and Calgary might not be so lucky. On top of the virus and the impact of a shuttered economy, they're coping with the effects of a collapse in world oil prices and demand while delivering essential services. Revenues have plummeted and cities can't run deficits. Kathleen Petty talks to Edmonton mayor Don Iveson and Calgary mayor Naheed Nenshi about the unique challenges for Alberta's two largest cities.