Joe Biden in memoirs calls Zelensky "insufficiently grateful" and compares Putin to a teenager

Former United States President Joe Biden describes Ukrainian President Volodymyr Zelensky in his memoirs as a stubborn and "insufficiently grateful" person. "Zelensky was sometimes moody and stubborn in private conversations, he did not appear as grateful as I expected," Biden writes. He also notes that Zelensky's acting past proved to be very good experience for a wartime leader.