Retired Lieutenant Colonel Alexander Vindman joins Bianna Golodryga to discuss his new book "Here, Right Matters: An American Story" about his experience testifying before Congress in 2019 about the phone call between President Trump and the Ukrainian leader Volodymyr Zelensky. Mayor James Brainard of Carmel, Indiana, talks about how he got his city to an 80% vaccination rate in a state falling behind the rest of the country. Hari Sreenivasan talks to Dr. Adam Hampshire about his latest research which draws a line between covid and decreased cognitive abilities. To learn more about how CNN protects listener privacy, visit cnn.com/privacy