any of the democratic candidates, biden or others. this is a campaign about character and character assassination. and trump doesn't care about that. his goal is to throw as much dirt out there and hope that some of it sticks, come election season. >> i can't help but wonder if pe we'll hear the words of republicans, namely lindsey grah graham. will national security be a focus. we're talking about one decision that hurt our allies, helped isis, helped the russians and the iran and assad regime. will that take center stage at some point? >> democrats would be smart to bring it up. this was a colossal failure of foreign policy by a president. >> who is the candidate that can seize on that? on that stage? >> i think all of them can. there's no reason you can't talk about a president single-handedly making a decision that was so disastrous. obviously, biden would try to use that because he has a lot of foreign policy chops to say