Crude prices fell by week's end despite continued fighting, as scant reports of possible diplomatic efforts outweighed ongoing regional attacks. Trump warns Russia, China: Trump cautioned China and Russia against supplying arms or targeting help to Iran. Trump cautioned China and Russia against supplying arms or targeting help to Iran. Political pressure grows at home: A new Fox News poll found most Americans oppose the Iran war, while reports say Trump is increasingly frustrated as the conflict drags on. President Trump attends a dignified transfer on Wednesday.