I think KommieLa’s “..not a thing comes to mind” remark was the death knell of her campaign.
That was another pretty bad misstep. It's scary that they had a horrible candidate (albeit with a fair amount of "because she's a woman" vote) and we were only a couple of missteps away from losing.
Trump certainly has his flaws as a candidate, too, but I think this campaign was the best of the three. He mostly stayed on message, and the energy and stamina he brought at his age was impressive.