nbc news pentagon correspondent, chan hans nichols, i was looking through some of those there giving tributes. his son, doug mccain. as well as his other son, jack mccain. and others. >> yeah. >> how many folks are going to be here at this very intimate and final ceremony? >> reporter: well, we don't know the total number. we know that he has a number of pall-bearers. he has grandsons, grand daughters, as well as jim mattis is going to be one of his pall-bearers. david petraeus, former cia director, also speaking at the funeral. and lindsey graham, the senator's close friend in the senate. the two of them would travel all over the world together, often with a fellow democrat, trying to bring home the message of bipartisanship. the idea that party stops at the water's edge. and that's where country begins. i have to apologize, we have the helicopter flying above us. you know, richard, at any moment now we're expecting this funeral service behind us to wrap-up. they are inside the chapel, and then to go down to the burial plot. it's right on the severyn river, a special spot for john mccain. in some ways, he