>> we haven't seen definitive evidence that ties him directly to that. what we have seen is a number of individuals that we know are tide to that and those individuals have been sanctioned. >> reporter: as sanders was speaking, the president upstaged his press secretary, breaking the news that he may punish general motors over its plans to close car factories in the u.s. tweeting, we are now looking at cutting all gm subsidies. the white house is blaming gm, not trump administration economic policies, for its current woes. >> they're making a car, frankly, that people don't want to buy. >> reporter: now, the white house said the president won't be meeting with the saudi crowned prince when mr. trump travels to argentina for the g-20 summit later on this week. the president will be meeting with russia's president vladimir putin and russian aggression against ukraine is likely to come up in that discussion when those two leaders meet. what the president will do about it, though, wolf, that remains a big open question. >> all right, jim, thank you. jim acosta, our chief white house correspondent reporting tonight from the north lawn of the white house. joining us now, democratic