It seems there is only one aspect of Donald Trump about which there is not widespread dissension and controversy: his hair.
In effect it is Mr Trump’s logo, as recognisable as that of, say, Coca-Cola. He is instantly identifiable even from a photo taken of the back or top of his head, without any other context or visual clue. No one goes to a barber’s and discusses Marco Rubio’s or Bernie Sanders’ hair, though I suppose you might discuss Mrs Clinton’s face in a plastic surgery clinic (and elsewhere, perhaps).