Lee Jae-myung's 'North Korea hotline' Moon Chung-in 'impossible' Victor Cha 'for Trump Putin deal' Former Sejong Institute Director Moon Chung-in judged presidential candidate Lee Jae-myung's 'North Korea hotline' policy as 'impossible', and Victor Cha, a professor at the Center for Strategic and International Studies (CSIS), warned Trump against 'negotiating with North Korea' in 'selling out al..