I watched the boarding live. The news broadcast I was watching mentioned that the President's "motorcade" was expected soon at Andrews.
Then Marine One landed. So first time experience on both the Marine helicopter and the Boeing 747.
Mr. Trump, having had his own helicopter and 757, must have had a lot of questions about the differences.
He smartly saluted the Marines upon exiting the chopper and again saluted the USAF present at the stairs for the 747.
As he climbed the stairs, I thought "I bet he does not turn and wave. He is not out in public, he is surrounded by government employees and media. He is going directly onto the plane"
Sure enough, he got to the top of the stairs and went directly aboard. All business!!