Donald Trump’s approach to striking a “big deal” on denuclearization with North Korea was too “rosy,” progressive presidential candidate Lee Jae-myung said on Thursday, vowing to meet U.S. and DPRK leaders in person to resolve the deadlock since the failed Hanoi summit.

Lee added that international sanctions to squeeze Pyongyang’s weapons development have not worked as “Western countries” intended.

“I will meet with President Biden and Chairman Kim Jong Un in person to solve the problem through the conditional relief of sanctions with phased, simultaneous actions,” Lee said, speaking in his first press conference with foreign correspondents in Seoul since