setbacks in mikeykolaiv and kharkiv. how surprised are you at the success the ukrainians are having? . >> i'm not surprised. i'm inspired resistance, the help that our own government has been able to give to them in a short period of time. i'm inspired by the sanctions imposed on russia go anything i thought was possible in such a short period of time. i'm also worried. if putin is frustrated, he becomes more ruthless. and he has not yet unleashed on cities in ukraine, including kyiv, the full force of the army that he has assembled. . >> you know he put his nuclear deterrence force on high alert. you say you're worried. are you worried that >> i'm more worried now about what artillery can do to