meanwhile president trump is reiterating the commitment to defend against threats from the north. trump spoke with south korea s act iing president by phone on sunday. alexander field joins us with the details. an ironclad commitment, but that wasn t the case during trump s election campaign when he threatened to withdraw u.s. forces if south korea didn t step up its financial support. what s changed here? that ironclad commitment does sound like a change of tune that was concerning. officials here in south korea and allies around the world everyone was listening to the inaugural address where he said america first. there was that very harsh rhetoric that foreign allies should be paying more for defense. that read out from both sides