joining us this hour. rachel s got the night reserve in just a few moments we re going to be joined by the cdc director, rochelle walensky. lots of questions on covid-19. i took lessons from that conversation we just heard. and the cdc s new mask guidance. you re not going to want to miss that conversation coming up. we start tonight with one of the most sobering, chilling, and emotional congressional hearings ever on capitol hill. at the first hearing of the house select committee to investigate the january 6th attack on the capitol, four police officers who were on the front lines that day testified to the brutality of the attack, to the horror of what they endured, and to how close they and so many of their colleagues came to being killed that day. the hearing began with harrowing video of the attack, some of it never seen before by the public. some of it from the body cameras of the officers who were testifying today. the officers watched the video from the witness table.