Kamala Harris appears in campaign event with Oprah Winfrey

Democratic presidential nominee Kamala Harris called for action to stop gun violence at schools during a campaign event with TV host Oprah Winfrey in Michigan. The event held in the battleground state was joined by thousands online, including some of entertainment's biggest names who joined via video link Oprah hosts star-studded sit-down with Kamala Harris: ‘Hope is making a comeback’