here at nato about not just what will happen here but next week in that sitdown. >> not just concerns of what happens in nato, but what will happen, i guess, just days from now. the president on the south lawn as he prepared to board marine one, antagonizing the british prime minister theresa may, who we know will visit just days from now. praising boris johnson, who just stepped down as the foreign minister, as it were. so this is going to be a week-long parade. >> reporter: it's a week-long parade that, depending on what the president says and does, could up end the past 70 years of global world order and common defense policy. so usually this is sort of a ritualistic event. you have the symbolism that will be heavy tomorrow. there's going to be what they call a family photo. lots of hand shakes, back patting. last year, the president pushed aside the president of montenegro to get to the front