washington u.s. president donald trump say wednesday unite state prepare tackle crisis surround north korea without china necessary president make comment joint news conference visit nato secretary general jens stoltenberg trump meet chinese president xi jinping last week speak phone wednesday night president xi want right thing good bond think good chemistry together think want help us north korea trump say talk trade talk lot things say way go make good trade deal help us north korea otherwise go go alone right go alone mean go lot nations trump say prepare take north korea without china need