Mrs. Kennedy sat in the ambulance next to the body. I sat with her right in the back, and we took off. When we got to Air Force One – I had called Air Force One to
say, “Be sure that the airplane, wherever it is, it is in a guarded, secure position. If you have to move it, move it. Whatever you have to do.”
I walked back and I said, “Swindal, what on earth is going on?” He said, “The President wants to remain in this area.” You see, I could not remember – it was President Johnson at that time. I said, “The President is in the back.” “No,” he said, “I mean President Johnson.” I said, “But he’s the Vice President.” He said, “Well, he’s going to be President.”
I walked in the toilet, in the powder room, and there he [Lyndon Johnson] was hiding, with the curtain closed, saying, “They’re going to get us all. It’s a plot. It’s a plot. It’s going to get us all.” He was hysterical, sitting down on the john there alone in this thing.
Now he got hold of himself and got dressed again, changed his shirt or something, and ordered everybody to attend his swearing-in ceremony including Mrs. Kennedy. Somebody came in the back saying, “Everybody is to attend - including Mrs. Kennedy."
http://archive1.jfklibrary.org/JFKOH/Mc ... -02-TR.pdf