a good sunday evening to you. i m jim sciutto. and welcome back to cnn special live coverage of the russian rebellion that erupted without warning and ended quickly this weekend not long after it began. yet and we should be clear the world is only beginning to assess the fallout. there are growing questions tonight about vladimir putin s leadership going forward and whether his iron grip on russia is weakening. the crash site of a russian military plane reportedly brought down by the wagner group yesterday. the cause of the crash not clear. but footage indicates the aircraft had been struck by a missile or rocket. there s still no sign of vladimir s leader, yevgeny prigozhin, who led this march on russia, af he cut a deal to go into belarus. also not seen, putin. we re going to have the latest on the white house reaction and president biden s conversation today with ukraine s leader. first, though, an update from cnn s matthew chance, who is in moscow. reporter: jim,