series of network interviews he was saying the idea, quote, could potentially be a significant breakthrough. >> i think a famous american president once said trust but verify. you have to take it with a grain of salt initially, but between the statements that we saw from the russians, the statement today from the syrians, this represents a potentially positive development. we are going to run this to ground. >> though the origin and timing of the kerry proposal looked a little ham handled at the time, more like stumbling into a possible diplomatic solution that engineering one, the president clearly seized on it. >> the fact that the u.s. administration and i have said we are serious about this i think has prompted some interesting conversations. and these are conversations that i've had directly with mrmr. putin when i was at the g-20. we had some time to discuss this. >> this morning syria made a