Why the share of Americans without health coverage is rising

Health care is a top 2020 political issue. Democratic candidates are debating whether to build upon the Affordable Care Act, or 'Obamacare,' or replace it with Medicare for All. Meanwhile, President Trump wants to dismantle the ACA entirely. As millions of Americans enter the time of year when they choose their health plans, Amna Nawaz gets the latest from Margot Sanger-Katz of The New York Times.