Dr. Sanjay Gupta questions whether Biden's behavior reflects an underl… CNN 0 137 07.05 22:18 https://www.youtube.com/watch?v=MhdFWznNUk0 + 33 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 14 Dr. Sanjay Gupta questions whether Biden's behavior reflects an underlying condition