CBS Evening News with Norah O'Donnell, 07/20

On tonight's CBS Evening News podcast - the promising new information from a coronavirus vaccine trial that has researchers optimistic. What they uncovered, and could it be a potential breakthrough in helping end the pandemic? Also - the latest on the ambush at the home of a federal judge in New Jersey -- what authorities are now saying about the shooter and his possible motive. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices