is taking a rather cautiously optimistic approach to this next sit-down between trump and kim. here's more of that interview with jake tapper on "state of the union." >> we know the history of the north koreans making promises, making commitments, lying, taking american money when president clinton said we've got this resolved back in 1994. this administration is not going to do that. we have charted a different path. frankly, we've been criticized for taking that path. the two people who can actually effectuate the denuclearization of north korea and a brighter future for the north korean people will gather for a second time. we have economic sanctions in place. we know the standard for relieving those sanctions. and i'm very hopeful we'll make a substantial step towards achieving the full denuclearization in a verifiable way in north korea. the south koreans, the japanese have been great partners in this, and we're very hopeful we can get a good outcome. >> has the trump administration changed the conditions for sanction relief from complete