Four police officers who defended the U.S. Capitol on January 6 will be the first to testify today when a House select committee opens its investigation. Also, in New York City, all city workers are being told they have to be vaccinated by mid-September. This is one of several vaccine mandates popping up around the country for health care workers and federal workers as coronavirus cases are on the rise again. And, for the first time, a federal opioid trial goes to closing arguments. Three of the nation's biggest drug wholesalers are accused of shipping millions of pills to rural communities in West Virginia.