washington adviser donald trump say tuesday could foresee circumstances short medium term republican presidential nominee would meet leader north korea become president remark appear take step back trump position may tell reuters will talk kim jong un try stop pyongyang nuclear program peter hoekstra former republican congressman adviser trump ask debate u.s. policy towards north korea condition trump would meet kim imagine set circumstances short intermediate future would see president trump summit meet leader north korea say hoekstra avoid directly repeat suggestions trump u.s. ally japan south korea could allow develop nuclear weapons defend north korea rather rely u.s. nuclear umbrella decide south korea japan unite state identify objectives go vis-à-vis north korea tactics go put place address objective say ask clarify trump stand issue however hoekstra add would state clearly go discussions south korea japan everything table former assistant secretary state east asia kurt campbell supporter trump rival hillary clinton say real issue strategically wise accord campbell trump say maybe heat campaign ... things deeply unnerve asia hoekstra say trump seek challenge u.s. friendships asia necessary sit ally develop successful north korea strategy ask trump complaints asian ally freeload unite state say trump business background mean statements come little bite coarse us political world might comfortable with ally would expect pay fair share u.s. taxpayers could subsidize defense others say ask candidates consider preemptive strike conceivable mean deal north korea nuclear program campbell hoekstra say options table adviser rule trump meet north korea 's kim near future