Senator Dianne Feinstein dead at 90 years old. Bianna looks at the life and legacy of the longest-serving female in the U.S. Senate. Then a mass exodus and an unfolding humanitarian crisis. She gets the latest on the Nagorno-Karabakh, the separatist enclave that will soon cease to exist. And White House National Climate Advisor Ali Zaidi tells Michel Martin how to turn the climate crisis into opportunity.
