Susan, I've had that same thought, but have tried to observe the policy that it's best not to say anything out loud.

it was a moment in his speeches when he crossed the invisible line.

I wonder if we both reacted to the same moment, watching a speech on TV. He was pausing a moment whie the crowd applauded/cheered, seemed to get a "faraway look in his eye," and sort of gulped ~ I just saw his adam's apple bob up and down momentarily. I had that awful thought and didn't say anything, but a few seconds later my wife said it out loud. She must have reacted to the same thing I saw.