'Darkest part of the pandemic' is approaching, says public health expert

As the coronavirus surges across much of the United States, infection rates are particularly high in some less-populated Western and Midwestern states, including Montana, North Dakota and South Dakota. Amna Nawaz talks to Dr. Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota about the crisis -- and how to address it. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders