Why did Trump repeatedly pause to make parenthetical remarks?

Speaking at a recent political rally, former President Trump repeatedly paused to comment on points he had just made. My first reaction was that it was a clever technique. He not only made his point, but then suggested what his audience should think about it.

My second reaction was that it reminded me of an old-fashioned comedy routine in which a ventriloquist’s “dummy” would comment on what the ventriloquist had just said.

Were Trump and the ventriloquists merely being clever and entertaining or were they giving voice to alternate personalities? I don’t know. Do you?