'Medicare-for-all': How Canada's universal health-care system works

Canada's health-care system is playing a larger role in America's political discourse as the 2020 presidential elections heat up. Progressives on the left love pointing to Canada as an equitable and efficient health care system. Conservatives use Canada as an example when warning about the dangers of socialized medicine and unchecked bureaucracy. So how exactly is medicare working in Canada and how does it compare to the United States?