Former Aetna CEO Mark Bertolini on 'Medicare for All': No one can explain to me what it is

7:53 AM ET Fri, 22 March 2019

Former Aetna CEO Mark Bertolini joins "Squawk Box" to talk about the state of the health care industry. The discussion touches on how the U.S. can improve its system, socialized medicine, and the recent Biogen Alzheimer's trial cancellation.