as far as hearing from the mexican president, he did make a point prior to that sitdown, steven, sayingng-term solutions cannot come from extending border barriers or from putting more barbed wire along the banks of the rio grande but by re-establishing relations with many of these central american countries, where so many of these migrants are coming from. >> leaders in texas definitely disagree with that one, morgan. i also wanted to ask, there's been discrepancy in the number of people actually in this latest caravan. what do we know about that? >> reporter: just a few days ago, organizers of this caravan seen near guatemala said they had grown to about 8,000 people. but two different sources, the mexican president said that that group had dwindled to about 1,600. and then federal officials said that this is numbering in the low thousands, 3,000 or so migrants. so, definitely different numbers there, but at least at last check it does appear the size of that caravan still, mind you, about 1,000 miles south of where i am, does appear to be dwindling. steven? >> long way to go. morgan