The past president is usually just that, not news. But Trump was good for ratings and they don't want to let it go.
Trump makes himself newsworthy by being a bottomless pit of disorder. No disagreement that the news is in it for the ratings/eyeballs etc, but how is it the news’s fault that trump is good for ratings?
I do find it interesting that most news sites seem to have agreed that his stumbling, bumbling way of often losing his train of thought is rarely worth a mention.