The Great Debate has already been post-mortemed beyond caring, but there are still a few quick thoughts that ought to be shared if you’ll indulge a few minutes.

Donald Trump proved himself ever more unpresidential. No surprise there. But to show up for an crucial public event so completely unprepared, and then to behave rudely and boorishly — not to mention continuing to swim in a pool of lies — made clear once again that his candidacy has no respect for the American democracy.

And yet — it is difficult to believe that too many minds were changed by the debate results. Hillary Clinton’s supporters certainly had plenty to celebrate in her performance, though it was marred by some inconsistencies and, to put it bluntly, lies. Trump’s hard-core backers are already skipping over his blunders in proclaiming their continuing allegiance.

So what would the undecideds think of all that? Looked at as dispassionately as possible, I can’t imagine Trump said or did anything to win them over with his distasteful performance. And women and Hispanics assuredly found nothing but hostility from the candidate’s words and taunts and attitudes.

The sad thing to contemplate is that Trump can and may get much worse. He is capable of gutter politics, as we know, and given the way this debate turned out, the second one may set new records for nastiness and incivility. Not something to look forward to, is it?