>> let's bring in gordon chang, gordon, what are your thoughts about the president crossing the line and stepping onto north korean as a sitting president? >> this is really stunning because probably to other american political figure would have done this and no one would have done this on 2-day's notice, this is really historic, but the point is this is also a propaganda victory for north korea. north korea says t the strongest nation on earth and what they will show president trump coming into north korea before kim jong un goes to american soil. americans don't pay attention to symbolism because we have legitimate government. this is very important to him. president trump is not wrong to do this but you have to get something in rurp and needs to get pretty quickly. >> how quickly are you talking about? >> i would hope some time this year, this has been a long process. we let up on maximum pressure on the north koreans last may, may of 2018 and since that time kim