Now that we know how huge the gap on housing is—Canada needs 3.5 million more homes by 2030—you would think governments across the country would be doing everything they can to narrow it. But instead, it's widening. In fact, our rate of building new homes has slowed to less than what it was during 2020, when many construction sites were shuttered for weeks during the first wave of Covid. How did this happen? Why aren't companies building? And if they won't, why aren't governments? Why is the problem every party acknowledges is Canada's biggest challenge still getting worse?GUEST: David Macdonald, Senior Economist, Canadian Centre for Policy Alternatives (author of Canada is building fewer homes today than during pandemic economy shutdown)