that is threatening some of its immediate neighbors. not out of strength, but out of weakness. >> president putin and i had a -- share a unique responsibility. to manage the relationship between two powerful and proud countries. >> all right. let's bring in the professor of international politics at the fletcher school of law and diplomacy at tufts university, daniel dressner. i'll echo what i think president biden said after this meeting last week and that is that the proof will be in the pudding. it's not how the meeting went it's how russia behaves in the weeks and months ahead and how america responds if they don't follow suit with what president biden laid on the table during the meeting. >> do they have incentive? what's the incentive for putin to stop doing what he's been doing the past 20 years?