Democrats Attack One Another in Fiery Debate in Las Vegas

A.M. Edition for February 20th: Democratic presidential hopefuls took turns attacking one another in a fiery debate ahead of Nevada's Caucasus. Emily Glazer reports from Las Vegas. Plus, Paul Vigna on why U.S. investors are staying optimistic despite coronavirus fears. Charlie Turner hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices