Republican party . And another vaccine heads for approval. Why estimates for hitting herd immunity are creeping upwards. I say between 75 and 80, 85 of the population. If we get that, we would develop an umbrella of immunity. All in starts now. Good evening from washington, d. C. Im mehdi hassan in for chris hayes. We still have 23 more days of donald trump as president. 23 more days where he will continue to do great damage to this nation, and that damage will extend well into the future. Just today, president elect joe biden said that trump and his political appointees at the department of defense and elsewhere are even now refusing to share crucial information with the incoming biden administration. Right now we just arent getting all the information that we need for the on from the Outgoing Administration in Key National Security areas. Its nothing short in my view of irresponsibility. Trump has spent the past four years flooding the zone with outrage after outrage, from praising n