you can pick your adjective. it was a stunning, consequential weekend for russian president vladimir putin as his iron grip on power faced its most serious threat. sources tell cnn u.s. officials believe prigozhin was challenging a challenge to the military but were caught off grand. secretary blinken's office confirm he spoke today with officials from as far away as japan and turkey as well as many european nations about the situation. jeremy diamond joins me live from outside the white house. president biden's national security advisor lake sullivan they're at camp david. what's the latest you're hearing? >> jake sullivan's presence at the president's side at camp david today tells you everything you need to know about how seriously the white house was taking this situation and how uncertain it has been over the last 24 hours. sullivan, he was scheduled to travel to denmark but stayed